I've been playing with this lately, since I need to be able to identify texts at various levels for stuff I'm working on. I created a frequency list from the syntax trees
using a simple XQuery. I read up on
readability formulas used for English), and decided to try a modified Dale-Chall index, which seems to be similar to what you did here. For English, this index has a 0.93 correlation with reading scores, and it's easy to compute, so it makes sense to try it.
There are three places to tune the results:
- The frequency threshhold to use for unknown words (it would also be easy enough to use a list of words by chapter, and compute the difficulty compared to the words a student should have learned by now)
- The weighting of unknown words in computing the difficulty of a sentence
- The weighting of the length of a sentence in computing its difficulty
Here's the query I wrote:
Code: Select all
let $common := doc("/home/jonathan/project/biblicalhumanities.org/greek-new-testament/syntax-trees/sblgnt-lowfat/artifacts/frequency.xml")//lemma[@count >= 50]/string(@n)
for $s in //sentence
let $words := $s//w
let $length := count($words)
let $unknown := $words[not(@lemma = $common)]
let $percent-unknown := count($unknown) div $length
let $difficulty := 0.15 * $percent-unknown + 0.05 * $length
order by $difficulty
where $length > 5
return
<group>
<name>
{
"difficulty: ", $difficulty,
" percent-unknown: ", $percent-unknown,
" length: ", $length, " unknown: ", count($unknown) , " ", $unknown ! string-join(./@lemma,' ')
}
</name>
{ $s }
</group>
This rates the difficulty of each sentence in the Greek New Testament, sorting by difficulty. Let's do a little plausibility on this ... here are some of the easiest sentences of length > 5 words, which were all rated at the same level (0.3):
- Matthew 05:14 Ὑμεῖς ἐστε τὸ φῶς τοῦ κόσμου.
- Matthew 12:26 πῶς οὖν σταθήσεται ἡ βασιλεία αὐτοῦ;
- Mark 04:24 καὶ ἔλεγεν αὐτοῖς· Βλέπετε τί ἀκούετε.
- Acts 16:18 τοῦτο δὲ ἐποίει ἐπὶ πολλὰς ἡμέρας.
- Matthew 15:23 ὁ δὲ οὐκ ἀπεκρίθη αὐτῇ λόγον.
- Mark 05:09 καὶ ἐπηρώτα αὐτόν· Τί ὄνομά σοι;
- Matthew 20:21 ὁ δὲ εἶπεν αὐτῇ· Τί θέλεις;
- Matthew 21:30 ὁ δὲ ἀποκριθεὶς εἶπεν· Ἐγώ, κύριε·
- Matthew 22:25 ἦσαν δὲ παρ’ ἡμῖν ἑπτὰ ἀδελφοί·
- Matthew 27:43 εἶπεν γὰρ ὅτι Θεοῦ εἰμι υἱός.
- Mark 02:13 Καὶ ἐξῆλθεν πάλιν παρὰ τὴν θάλασσαν·
A couple of interesting things about this result: there are 592 sentences with more than 5 words that are rated at this level of difficulty, and they contain a wide variety of sentence orders. This set of sentences might be useful to someone trying to learn to write simple sentences in Greek. A lot of these sentences use only words with frequency > 50 in the GNT. I think these results have face validity, the sentences feel more or less equally difficult to me.
Let's ratchet this up to 0.5 (skipping over a bunch of results). That gives you fewer results, generally with somewhat longer sentences:
- Matthew 08:01 Καταβάντος δὲ αὐτοῦ ἀπὸ τοῦ ὄρους ἠκολούθησαν αὐτῷ ὄχλοι πολλοί.
- Matthew 20:15 ἢ ὁ ὀφθαλμός σου πονηρός ἐστιν ὅτι ἐγὼ ἀγαθός εἰμι;
- Matthew 25:12 ὁ δὲ ἀποκριθεὶς εἶπεν· Ἀμὴν λέγω ὑμῖν, οὐκ οἶδα ὑμᾶς.
- Mark 02:13 καὶ πᾶς ὁ ὄχλος ἤρχετο πρὸς αὐτόν, καὶ ἐδίδασκεν αὐτούς.
- Mark 02:28 ὥστε κύριός ἐστιν ὁ υἱὸς τοῦ ἀνθρώπου καὶ τοῦ σαββάτου.
These are level 0.82815, longer sentences with some words not on the list
- Acts 15:32 Ἰούδας τε καὶ Σιλᾶς, καὶ αὐτοὶ προφῆται ὄντες, διὰ λόγου πολλοῦ παρεκάλεσαν τοὺς ἀδελφοὺς καὶ ἐπεστήριξαν·
- 1 Corinthians 03:18 εἴ τις δοκεῖ σοφὸς εἶναι ἐν ὑμῖν ἐν τῷ αἰῶνι τούτῳ, μωρὸς γενέσθω, ἵνα γένηται σοφός,
- James 02:26 ὥσπερ γὰρ τὸ σῶμα χωρὶς πνεύματος νεκρόν ἐστιν, οὕτως καὶ ἡ πίστις χωρὶς ἔργων νεκρά ἐστιν.
- John 05:21 ὥσπερ γὰρ ὁ πατὴρ ἐγείρει τοὺς νεκροὺς καὶ ζῳοποιεῖ, οὕτως καὶ ὁ υἱὸς οὓς θέλει ζῳοποιεῖ.
- Acts 04:04 πολλοὶ δὲ τῶν ἀκουσάντων τὸν λόγον ἐπίστευσαν, καὶ ἐγενήθη ὁ ἀριθμὸς τῶν ἀνδρῶν ὡς χιλιάδες πέντε.
Let's jump down to 1.14772:
- Acts 24:01 Μετὰ δὲ πέντε ἡμέρας κατέβη ὁ ἀρχιερεὺς Ἁνανίας μετὰ πρεσβυτέρων τινῶν καὶ ῥήτορος Τερτύλλου τινός, οἵτινες ἐνεφάνισαν τῷ ἡγεμόνι κατὰ τοῦ Παύλου.
- 2 Corinthians 08:22 συνεπέμψαμεν δὲ αὐτοῖς τὸν ἀδελφὸν ἡμῶν ὃν ἐδοκιμάσαμεν ἐν πολλοῖς πολλάκις σπουδαῖον ὄντα, νυνὶ δὲ πολὺ σπουδαιότερον πεποιθήσει πολλῇ τῇ εἰς ὑμᾶς.
- 2 Peter 03:09 οὐ βραδύνει κύριος τῆς ἐπαγγελίας, ὥς τινες βραδύτητα ἡγοῦνται, ἀλλὰ μακροθυμεῖ εἰς ὑμᾶς, μὴ βουλόμενός τινας ἀπολέσθαι ἀλλὰ πάντας εἰς μετάνοιαν χωρῆσαι.
- 1 Timothy 06:01 Ὅσοι εἰσὶν ὑπὸ ζυγὸν δοῦλοι, τοὺς ἰδίους δεσπότας πάσης τιμῆς ἀξίους ἡγείσθωσαν, ἵνα μὴ τὸ ὄνομα τοῦ θεοῦ καὶ ἡ διδασκαλία βλασφημῆται.
- Matthew 06:30 εἰ δὲ τὸν χόρτον τοῦ ἀγροῦ σήμερον ὄντα καὶ αὔριον εἰς κλίβανον βαλλόμενον ὁ θεὸς οὕτως ἀμφιέννυσιν, οὐ πολλῷ μᾶλλον ὑμᾶς, ὀλιγόπιστοι;
Larger scores do seem to correlate with harder sentences, though it's obviously not a perfect measure. Let's keep going, these are rated 1.59 - 1.6:
- Matthew 25:42 ἐπείνασα γὰρ καὶ οὐκ ἐδώκατέ μοι φαγεῖν, ἐδίψησα καὶ οὐκ ἐποτίσατέ με, ξένος ἤμην καὶ οὐ συνηγάγετέ με, γυμνὸς καὶ οὐ περιεβάλετέ με, ἀσθενὴς καὶ ἐν φυλακῇ καὶ οὐκ ἐπεσκέψασθέ με.
- James 03:06 καὶ ἡ γλῶσσα πῦρ, ὁ κόσμος τῆς ἀδικίας ἡ γλῶσσα καθίσταται ἐν τοῖς μέλεσιν ἡμῶν, ἡ σπιλοῦσα ὅλον τὸ σῶμα καὶ φλογίζουσα τὸν τροχὸν τῆς γενέσεως καὶ φλογιζομένη ὑπὸ τῆς γεέννης.
- Acts 27:21 Πολλῆς τε ἀσιτίας ὑπαρχούσης τότε σταθεὶς ὁ Παῦλος ἐν μέσῳ αὐτῶν εἶπεν· Ἔδει μέν, ὦ ἄνδρες, πειθαρχήσαντάς μοι μὴ ἀνάγεσθαι ἀπὸ τῆς Κρήτης κερδῆσαί τε τὴν ὕβριν ταύτην καὶ τὴν ζημίαν.
- Matthew 23:37 Ἰερουσαλὴμ Ἰερουσαλήμ, ἡ ἀποκτείνουσα τοὺς προφήτας καὶ λιθοβολοῦσα τοὺς ἀπεσταλμένους πρὸς αὐτήν— ποσάκις ἠθέλησα ἐπισυναγαγεῖν τὰ τέκνα σου, ὃν τρόπον ὄρνις ἐπισυνάγει τὰ νοσσία αὐτῆς ὑπὸ τὰς πτέρυγας, καὶ οὐκ ἠθελήσατε;
- Philippians 02:05 τοῦτο φρονεῖτε ἐν ὑμῖν ὃ καὶ ἐν Χριστῷ Ἰησοῦ, ὃς ἐν μορφῇ θεοῦ ὑπάρχων οὐχ ἁρπαγμὸν ἡγήσατο τὸ εἶναι ἴσα θεῷ, ἀλλὰ ἑαυτὸν ἐκένωσεν μορφὴν δούλου λαβών, ἐν ὁμοιώματι ἀνθρώπων γενόμενος·
Now let's skip down to the bottom. The hardest sentence, according to this metric, isn't actually all that hard. It's a genealogy, so it has a lot of rare words that are proper nouns, and it is long, but the sentence structure is easy:
- Luke 03:23 Καὶ αὐτὸς ἦν Ἰησοῦς ἀρχόμενος ὡσεὶ ἐτῶν τριάκοντα, ὢν υἱός, ὡς ἐνομίζετο, Ἰωσὴφ τοῦ Ἠλὶ τοῦ Μαθθὰτ τοῦ Λευὶ τοῦ Μελχὶ τοῦ Ἰανναὶ τοῦ Ἰωσὴφ τοῦ Ματταθίου τοῦ Ἀμὼς τοῦ Ναοὺμ τοῦ Ἑσλὶ τοῦ Ναγγαὶ τοῦ Μάαθ τοῦ Ματταθίου τοῦ Σεμεῒν τοῦ Ἰωσὴχ τοῦ Ἰωδὰ τοῦ Ἰωανὰν τοῦ Ῥησὰ τοῦ Ζοροβαβὲλ τοῦ Σαλαθιὴλ τοῦ Νηρὶ τοῦ Μελχὶ τοῦ Ἀδδὶ τοῦ Κωσὰμ τοῦ Ἐλμαδὰμ τοῦ Ἢρ τοῦ Ἰησοῦ τοῦ Ἐλιέζερ τοῦ Ἰωρὶμ τοῦ Μαθθὰτ τοῦ Λευὶ τοῦ Συμεὼν τοῦ Ἰούδα τοῦ Ἰωσὴφ τοῦ Ἰωνὰμ τοῦ Ἐλιακὶμ τοῦ Μελεὰ τοῦ Μεννὰ τοῦ Ματταθὰ τοῦ Ναθὰμ τοῦ Δαυὶδ τοῦ Ἰεσσαὶ τοῦ Ἰωβὴλ τοῦ Βόος τοῦ Σαλὰ τοῦ Ναασσὼν τοῦ Ἀμιναδὰβ τοῦ Ἀδμὶν τοῦ Ἀρνὶ τοῦ Ἑσρὼμ τοῦ Φαρὲς τοῦ Ἰούδα τοῦ Ἰακὼβ τοῦ Ἰσαὰκ τοῦ Ἀβραὰμ τοῦ Θάρα τοῦ Ναχὼρ τοῦ Σεροὺχ τοῦ Ῥαγαὺ τοῦ Φάλεκ τοῦ Ἔβερ τοῦ Σαλὰ τοῦ Καϊνὰμ τοῦ Ἀρφαξὰδ τοῦ Σὴμ τοῦ Νῶε τοῦ Λάμεχ τοῦ Μαθουσαλὰ τοῦ Ἑνὼχ τοῦ Ἰάρετ τοῦ Μαλελεὴλ τοῦ Καϊνὰμ τοῦ Ἐνὼς τοῦ Σὴθ τοῦ Ἀδὰμ τοῦ θεοῦ.
That points out an obvious weakness in the metric, it's not completely foolproof. Let's omit that and look at the previous sentences rated particularly hard:
- Ephesians 01:15 Διὰ τοῦτο κἀγώ, ἀκούσας τὴν καθ’ ὑμᾶς πίστιν ἐν τῷ κυρίῳ Ἰησοῦ καὶ τὴν ἀγάπην τὴν εἰς πάντας τοὺς ἁγίους, οὐ παύομαι εὐχαριστῶν ὑπὲρ ὑμῶν μνείαν ποιούμενος ἐπὶ τῶν προσευχῶν μου, ἵνα ὁ θεὸς τοῦ κυρίου ἡμῶν Ἰησοῦ Χριστοῦ, ὁ πατὴρ τῆς δόξης, δώῃ ὑμῖν πνεῦμα σοφίας καὶ ἀποκαλύψεως ἐν ἐπιγνώσει αὐτοῦ, πεφωτισμένους τοὺς ὀφθαλμοὺς τῆς καρδίας ὑμῶν εἰς τὸ εἰδέναι ὑμᾶς τίς ἐστιν ἡ ἐλπὶς τῆς κλήσεως αὐτοῦ, τίς ὁ πλοῦτος τῆς δόξης τῆς κληρονομίας αὐτοῦ ἐν τοῖς ἁγίοις, καὶ τί τὸ ὑπερβάλλον μέγεθος τῆς δυνάμεως αὐτοῦ εἰς ἡμᾶς τοὺς πιστεύοντας κατὰ τὴν ἐνέργειαν τοῦ κράτους τῆς ἰσχύος αὐτοῦ
- Colossians 01:03 Εὐχαριστοῦμεν τῷ θεῷ πατρὶ τοῦ κυρίου ἡμῶν Ἰησοῦ Χριστοῦ πάντοτε περὶ ὑμῶν προσευχόμενοι, ἀκούσαντες τὴν πίστιν ὑμῶν ἐν Χριστῷ Ἰησοῦ καὶ τὴν ἀγάπην ἣν ἔχετε εἰς πάντας τοὺς ἁγίους διὰ τὴν ἐλπίδα τὴν ἀποκειμένην ὑμῖν ἐν τοῖς οὐρανοῖς, ἣν προηκούσατε ἐν τῷ λόγῳ τῆς ἀληθείας τοῦ εὐαγγελίου τοῦ παρόντος εἰς ὑμᾶς, καθὼς καὶ ἐν παντὶ τῷ κόσμῳ ἐστὶν καρποφορούμενον καὶ αὐξανόμενον καθὼς καὶ ἐν ὑμῖν, ἀφ’ ἧς ἡμέρας ἠκούσατε καὶ ἐπέγνωτε τὴν χάριν τοῦ θεοῦ ἐν ἀληθείᾳ· καθὼς ἐμάθετε ἀπὸ Ἐπαφρᾶ τοῦ ἀγαπητοῦ συνδούλου ἡμῶν, ὅς ἐστιν πιστὸς ὑπὲρ ἡμῶν διάκονος τοῦ Χριστοῦ, ὁ καὶ δηλώσας ἡμῖν τὴν ὑμῶν ἀγάπην ἐν πνεύματι.
- 2 Thessalonians 01:05 ἔνδειγμα τῆς δικαίας κρίσεως τοῦ θεοῦ, εἰς τὸ καταξιωθῆναι ὑμᾶς τῆς βασιλείας τοῦ θεοῦ, ὑπὲρ ἧς καὶ πάσχετε, εἴπερ δίκαιον παρὰ θεῷ ἀνταποδοῦναι τοῖς θλίβουσιν ὑμᾶς θλῖψιν καὶ ὑμῖν τοῖς θλιβομένοις ἄνεσιν μεθ’ ἡμῶν ἐν τῇ ἀποκαλύψει τοῦ κυρίου Ἰησοῦ ἀπ’ οὐρανοῦ μετ’ ἀγγέλων δυνάμεως αὐτοῦ ἐν φλογὶ πυρός, διδόντος ἐκδίκησιν τοῖς μὴ εἰδόσι θεὸν καὶ τοῖς μὴ ὑπακούουσιν τῷ εὐαγγελίῳ τοῦ κυρίου ἡμῶν Ἰησοῦ, οἵτινες δίκην τίσουσιν ὄλεθρον αἰώνιον ἀπὸ προσώπου τοῦ κυρίου καὶ ἀπὸ τῆς δόξης τῆς ἰσχύος αὐτοῦ, ὅταν ἔλθῃ ἐνδοξασθῆναι ἐν τοῖς ἁγίοις αὐτοῦ καὶ θαυμασθῆναι ἐν πᾶσιν τοῖς πιστεύσασιν, ὅτι ἐπιστεύθη τὸ μαρτύριον ἡμῶν ἐφ’ ὑμᾶς, ἐν τῇ ἡμέρᾳ ἐκείνῃ.
- Ephesians 03:01 Τούτου χάριν ἐγὼ Παῦλος ὁ δέσμιος τοῦ Χριστοῦ Ἰησοῦ ὑπὲρ ὑμῶν τῶν ἐθνῶν— εἴ γε ἠκούσατε τὴν οἰκονομίαν τῆς χάριτος τοῦ θεοῦ τῆς δοθείσης μοι εἰς ὑμᾶς· κατὰ ἀποκάλυψιν ἐγνωρίσθη μοι τὸ μυστήριον, καθὼς προέγραψα ἐν ὀλίγῳ, πρὸς ὃ δύνασθε ἀναγινώσκοντες νοῆσαι τὴν σύνεσίν μου ἐν τῷ μυστηρίῳ τοῦ Χριστοῦ, ὃ ἑτέραις γενεαῖς οὐκ ἐγνωρίσθη τοῖς υἱοῖς τῶν ἀνθρώπων ὡς νῦν ἀπεκαλύφθη τοῖς ἁγίοις ἀποστόλοις αὐτοῦ καὶ προφήταις ἐν πνεύματι, εἶναι τὰ ἔθνη συγκληρονόμα καὶ σύσσωμα καὶ συμμέτοχα τῆς ἐπαγγελίας ἐν Χριστῷ Ἰησοῦ διὰ τοῦ εὐαγγελίου, οὗ ἐγενήθην διάκονος κατὰ τὴν δωρεὰν τῆς χάριτος τοῦ θεοῦ τῆς δοθείσης μοι κατὰ τὴν ἐνέργειαν τῆς δυνάμεως αὐτοῦ—
- Ephesians 04:11 καὶ αὐτὸς ἔδωκεν τοὺς μὲν ἀποστόλους, τοὺς δὲ προφήτας, τοὺς δὲ εὐαγγελιστάς, τοὺς δὲ ποιμένας καὶ διδασκάλους, πρὸς τὸν καταρτισμὸν τῶν ἁγίων εἰς ἔργον διακονίας, εἰς οἰκοδομὴν τοῦ σώματος τοῦ Χριστοῦ, μέχρι καταντήσωμεν οἱ πάντες εἰς τὴν ἑνότητα τῆς πίστεως καὶ τῆς ἐπιγνώσεως τοῦ υἱοῦ τοῦ θεοῦ, εἰς ἄνδρα τέλειον, εἰς μέτρον ἡλικίας τοῦ πληρώματος τοῦ Χριστοῦ, ἵνα μηκέτι ὦμεν νήπιοι, κλυδωνιζόμενοι καὶ περιφερόμενοι παντὶ ἀνέμῳ τῆς διδασκαλίας ἐν τῇ κυβείᾳ τῶν ἀνθρώπων ἐν πανουργίᾳ πρὸς τὴν μεθοδείαν τῆς πλάνης, ἀληθεύοντες δὲ ἐν ἀγάπῃ αὐξήσωμεν εἰς αὐτὸν τὰ πάντα, ὅς ἐστιν ἡ κεφαλή, Χριστός, ἐξ οὗ πᾶν τὸ σῶμα συναρμολογούμενον καὶ συμβιβαζόμενον διὰ πάσης ἁφῆς τῆς ἐπιχορηγίας κατ’ ἐνέργειαν ἐν μέτρῳ ἑνὸς ἑκάστου μέρους τὴν αὔξησιν τοῦ σώματος ποιεῖται εἰς οἰκοδομὴν ἑαυτοῦ ἐν ἀγάπῃ.
- Colossians 01:09 Διὰ τοῦτο καὶ ἡμεῖς, ἀφ’ ἧς ἡμέρας ἠκούσαμεν, οὐ παυόμεθα ὑπὲρ ὑμῶν προσευχόμενοι καὶ αἰτούμενοι ἵνα πληρωθῆτε τὴν ἐπίγνωσιν τοῦ θελήματος αὐτοῦ ἐν πάσῃ σοφίᾳ καὶ συνέσει πνευματικῇ, περιπατῆσαι ἀξίως τοῦ κυρίου εἰς πᾶσαν ἀρεσκείαν ἐν παντὶ ἔργῳ ἀγαθῷ καρποφοροῦντες καὶ αὐξανόμενοι τῇ ἐπιγνώσει τοῦ θεοῦ, ἐν πάσῃ δυνάμει δυναμούμενοι κατὰ τὸ κράτος τῆς δόξης αὐτοῦ εἰς πᾶσαν ὑπομονὴν καὶ μακροθυμίαν μετὰ χαρᾶς, εὐχαριστοῦντες τῷ πατρὶ τῷ ἱκανώσαντι ὑμᾶς εἰς τὴν μερίδα τοῦ κλήρου τῶν ἁγίων ἐν τῷ φωτί, ὃς ἐρρύσατο ἡμᾶς ἐκ τῆς ἐξουσίας τοῦ σκότους καὶ μετέστησεν εἰς τὴν βασιλείαν τοῦ υἱοῦ τῆς ἀγάπης αὐτοῦ, ἐν ᾧ ἔχομεν τὴν ἀπολύτρωσιν, τὴν ἄφεσιν τῶν ἁμαρτιῶν· ὅς ἐστιν εἰκὼν τοῦ θεοῦ τοῦ ἀοράτου, πρωτότοκος πάσης κτίσεως, ὅτι ἐν αὐτῷ ἐκτίσθη τὰ πάντα ἐν τοῖς οὐρανοῖς καὶ ἐπὶ τῆς γῆς, τὰ ὁρατὰ καὶ τὰ ἀόρατα, εἴτε θρόνοι εἴτε κυριότητες εἴτε ἀρχαὶ εἴτε ἐξουσίαι·
This version uses syntax trees, so I could add measures of syntactic complexity fairly easily. It can be easily modified for other Greek texts as long as the lemmas are available.
ἐξίσταντο δὲ πάντες καὶ διηποροῦντο, ἄλλος πρὸς ἄλλον λέγοντες, τί θέλει τοῦτο εἶναι;
http://jonathanrobie.biblicalhumanities.org/