Grammar parses for passage 6.20.12
Open translation for this passage
δὲ ἐπὶ τῷ βωμῷ χαλκοῦς κεῖται τὰ πτερὰ ἐπὶ μήκιστον ἐκτείνων.
The sentence has an elided/implicit subject for κεῖται, probably referring to an altar object; χαλκοῦς is a nominative masculine predicate/subject-oriented adjective, while τὰ πτερὰ is the accusative object of ἐκτείνων. The final participle is coordinated semantically with the implicit subject and governs the accusative phrase ἐπὶ μήκιστον.
| # | Form | Lemma | UPOS | XPOS | Features | Head | DepRel | Conf. | Note |
|---|---|---|---|---|---|---|---|---|---|
| 1 | δὲ | δέ | CCONJ | CONJ | Polarity=Pos | 6 κεῖται | cc | high | |
| 2 | ἐπὶ | ἐπί | ADP | PREP | _ | 4 βωμῷ | case | high | With dative τῷ βωμῷ: location. |
| 3 | τῷ | ὁ | DET | T-DSM | Case=Dat|Definite=Def|Gender=Masc|Number=Sing | 4 βωμῷ | det | high | |
| 4 | βωμῷ | βωμός | NOUN | N-DSM | Case=Dat|Gender=Masc|Number=Sing | 6 κεῖται | obl | high | |
| 5 | χαλκοῦς | χαλκοῦς | ADJ | A-NSM | Case=Nom|Gender=Masc|Number=Sing | 6 κεῖται | nsubj | medium | Nominative adjective functioning substantivally or agreeing with an omitted masculine noun. |
| 6 | κεῖται | κεῖμαι | VERB | V-PMI-3S | Mood=Ind|Number=Sing|Person=3|Tense=Pres|Voice=Mid | 0 ROOT | root | high | |
| 7 | τὰ | ὁ | DET | T-NPA | Case=Acc|Definite=Def|Gender=Neut|Number=Plur | 8 πτερὰ | det | high | |
| 8 | πτερὰ | πτερόν | NOUN | N-APN | Case=Acc|Gender=Neut|Number=Plur | 11 ἐκτείνων | obj | high | |
| 9 | ἐπὶ | ἐπί | ADP | PREP | _ | 10 μήκιστον | case | high | With accusative μήκιστον: extent. |
| 10 | μήκιστον | μακρός | ADJ | A-ASM-SUP | Case=Acc|Degree=Sup|Gender=Neut|Number=Sing | 11 ἐκτείνων | obl | medium | Neuter superlative used substantivally, ‘to the greatest length’; form may be parsed as an accusative singular neuter extent expression. |
| 11 | ἐκτείνων | ἐκτείνω | VERB | V-PAP-NSM | Case=Nom|Gender=Masc|Mood=Part|Number=Sing|Tense=Pres|Voice=Act | 6 κεῖται | advcl | medium | Present active participle, agreeing with the implicit masculine subject associated with χαλκοῦς; semantically descriptive rather than strictly subordinate. |
| 12 | . | . | PUNCT | PUNCT | _ | 6 κεῖται | punct | high |