As I read this, Ταύτην ἀρχὴν τῶν σημείων is the object of ἐποίησεν, but this object is split by the verb. So if you gather the object into one place, it looks like this:John 2:11 wrote:Ταύτην ἐποίησεν ἀρχὴν τῶν σημείων ὁ Ἰησοῦς ἐν Κανὰ τῆς Γαλιλαίας καὶ ἐφανέρωσεν τὴν δόξαν αὐτοῦ, καὶ ἐπίστευσαν εἰς αὐτὸν οἱ μαθηταὶ αὐτοῦ.
o Ταύτην ἀρχὴν τῶν σημείων
v ἐποίησεν
s ὁ Ἰησοῦς
adv ἐν Κανὰ τῆς Γαλιλαίας
or in sentence order, using o.1 to indicate that there is just one object, object #1, which is split (as opposed to two distinct objects):
o.1 Ταύτην ...
v ἐποίησεν
o.1 ... ἀρχὴν τῶν σημείων
s ὁ Ἰησοῦς
adv ἐν Κανὰ τῆς Γαλιλαίας
Why do you think the constituent is split in this verse?