How owls work: silent wings, turning heads, pellets and owl myths, sentence 12
Owls have extra blood vessels and little pools of blood that keep the brain fed when the neck is twisted, and the main arteries run through wide holes in the neck bones so they are not pinched.
Who acts: Owls, extra blood vessels, brain, main arteries · What happens: have, keep, feed, twisted, run, not pinch · To what, where: extra blood vessels, brain, neck, wide holes, arteries
This is a sentence of the lesson «How owls work: silent wings, turning heads, pellets and owl myths» of the biology course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (Owls, extra blood vessels, brain, main arteries), what happens, when and where, as Mova's frames read it from the tree.
The tree
The words, one row each (CoNLL-U)
| # | word | lemma | UPOS | features | head | relation |
|---|---|---|---|---|---|---|
| 1 | Owls | owl | NOUN | Number=Plur | 2 have | nsubj |
| 2 | have | have | VERB | Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin | root | root |
| 3 | extra | extra | ADJ | Degree=Pos | 5 vessels | amod |
| 4 | blood | blood | NOUN | Number=Sing | 5 vessels | compound |
| 5 | vessels | vessel | NOUN | Number=Plur | 2 have | obj |
| 6 | and | and | CCONJ | _ | 8 pools | cc |
| 7 | little | little | ADJ | Degree=Pos | 8 pools | amod |
| 8 | pools | pool | NOUN | Number=Plur | 5 vessels | conj |
| 9 | of | of | ADP | _ | 10 blood | case |
| 10 | blood | blood | NOUN | Number=Sing | 8 pools | nmod |
| 11 | that | that | PRON | PronType=Rel | 12 keep | nsubj |
| 12 | keep | keep | VERB | Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin | 5 vessels | acl:relcl |
| 13 | the | the | DET | Definite=Def PronType=Art | 14 brain | det |
| 14 | brain | brain | NOUN | Number=Sing | 12 keep | obj |
| 15 | fed | feed | VERB | Tense=Past VerbForm=Part | 12 keep | xcomp |
| 16 | when | when | ADV | PronType=Int | 20 twisted | advmod |
| 17 | the | the | DET | Definite=Def PronType=Art | 18 neck | det |
| 18 | neck | neck | NOUN | Number=Sing | 20 twisted | nsubj |
| 19 | is | be | AUX | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 20 twisted | aux:pass |
| 20 | twisted | twisted | VERB | Tense=Past VerbForm=Part Voice=Pass | 15 fed | advcl |
| 21 | , | , | PUNCT | _ | 26 run | punct |
| 22 | and | and | CCONJ | _ | 26 run | cc |
| 23 | the | the | DET | Definite=Def PronType=Art | 25 arteries | det |
| 24 | main | main | ADJ | Degree=Pos | 25 arteries | amod |
| 25 | arteries | artery | NOUN | Number=Plur | 26 run | nsubj |
| 26 | run | run | VERB | Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin | 2 have | conj |
| 27 | through | through | ADP | _ | 29 holes | case |
| 28 | wide | wide | ADJ | Degree=Pos | 29 holes | amod |
| 29 | holes | hole | NOUN | Number=Plur | 26 run | obl |
| 30 | in | in | ADP | _ | 33 bones | case |
| 31 | the | the | DET | Definite=Def PronType=Art | 33 bones | det |
| 32 | neck | neck | NOUN | Number=Sing | 33 bones | compound |
| 33 | bones | bone | NOUN | Number=Plur | 26 run | obl |
| 34 | so | so | ADV | _ | 38 pinched | advmod |
| 35 | they | they | PRON | Case=Nom Number=Plur Person=3 PronType=Prs | 38 pinched | nsubj:pass |
| 36 | are | be | AUX | Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin | 38 pinched | aux:pass |
| 37 | not | not | PART | Polarity=Neg | 38 pinched | advmod |
| 38 | pinched | pinch | VERB | Tense=Past VerbForm=Part Voice=Pass | 26 run | advcl |
| 39 | . | . | PUNCT | _ | 2 have | punct |
Pragmatics
No stored speech act for this sentence.
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | have | present | Owls | extra blood vessels and little pools of blood | vn birth-28.2-1 «NP V NP»: agent=Agent vessel=Patient | ||||
| 2 | keep | present | extra blood vessels and little pools of blood | the brain | tree rules | ||||
| 3 | feed | participle | the brain not said here | vn gorge-39.6 «NP V PP.patient»: agent=Agent | |||||
| 4 | twisted | present · passive | the neck | tree rules | |||||
| 5 | run | present | the main arteries | wide holes | in the neck bones | vn run-51.3.2-2-1 «NP V PP.location»: agent=Theme through hole=Trajectory | |||
| 6 | not pinch | present · passive | arteries = artery | vn steal-10.5 «NP V NP»: subject=Theme |
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.
Licence: CC BY-SA 4.0, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, mova-school-agreed-en.conllu) is part. The lessons were written for Mova's primary school. Sentence school:biology:302-how-owls-work-silent-wings-turning-heads-pellets-and-owl-myths.lesson:12.
The tree: Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R5-strong ×2, R7-rel-agree ×2, R8-pos-agree ×1. The frames are read from the tree by Mova's frames reader (prag) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.
See the release 0.4.
This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/biology/302-how-owls-work-silent-wings-turning-heads-pellets-and-owl-myths/12/