--- title: Owls have extra blood vessels and little pools of blood that keep th… — How owls work: silent wings, turning heads, pell… · tree and pragmatics description: 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. A sentence of the lesson «How owls work: silent --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/302-how-owls-work-silent-wings-turning-heads-pellets-and-owl-myths/12/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Biology](https://md.mova.elamur.ai/free/en/corpora/school/biology/) / [How owls work: silent wings, turning h…](https://md.mova.elamur.ai/free/en/corpora/school/biology/302-how-owls-work-silent-wings-turning-heads-pellets-and-owl-myths/) / 12 # 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 {#tree} ```conllu # sent_id = school:biology:302-how-owls-work-silent-wings-turning-heads-pellets-and-owl-myths.lesson:12 # text = 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. # source = school lesson (ours) # course = biology # lesson = 302-how-owls-work-silent-wings-turning-heads-pellets-and-owl-myths.lesson # annotation = 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 1 Owls owl NOUN NNS Number=Plur 2 nsubj _ _ 2 have have VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 extra extra ADJ JJ Degree=Pos 5 amod _ _ 4 blood blood NOUN NN Number=Sing 5 compound _ _ 5 vessels vessel NOUN NNS Number=Plur 2 obj _ _ 6 and and CCONJ CC _ 8 cc _ _ 7 little little ADJ JJ Degree=Pos 8 amod _ _ 8 pools pool NOUN NNS Number=Plur 5 conj _ _ 9 of of ADP IN _ 10 case _ _ 10 blood blood NOUN NN Number=Sing 8 nmod _ _ 11 that that PRON WDT PronType=Rel 12 nsubj _ _ 12 keep keep VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 5 acl:relcl _ Agree=R5-strong|Haiku=8:acl:relcl 13 the the DET DT Definite=Def|PronType=Art 14 det _ _ 14 brain brain NOUN NN Number=Sing 12 obj _ _ 15 fed feed VERB VBN Tense=Past|VerbForm=Part 12 xcomp _ _ 16 when when ADV WRB PronType=Int 20 advmod _ _ 17 the the DET DT Definite=Def|PronType=Art 18 det _ _ 18 neck neck NOUN NN Number=Sing 20 nsubj _ _ 19 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 20 aux:pass _ Agree=R7-rel-agree|Haiku=20:cop 20 twisted twisted VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 15 advcl _ Agree=R8-pos-agree|Haiku=15:advcl|HaikuPos=ADJ:JJ:Degree=Pos 21 , , PUNCT , _ 26 punct _ _ 22 and and CCONJ CC _ 26 cc _ _ 23 the the DET DT Definite=Def|PronType=Art 25 det _ _ 24 main main ADJ JJ Degree=Pos 25 amod _ _ 25 arteries artery NOUN NNS Number=Plur 26 nsubj _ _ 26 run run VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 2 conj _ Agree=R5-strong|Haiku=12:conj 27 through through ADP IN _ 29 case _ _ 28 wide wide ADJ JJ Degree=Pos 29 amod _ _ 29 holes hole NOUN NNS Number=Plur 26 obl _ _ 30 in in ADP IN _ 33 case _ _ 31 the the DET DT Definite=Def|PronType=Art 33 det _ _ 32 neck neck NOUN NN Number=Sing 33 compound _ _ 33 bones bone NOUN NNS Number=Plur 26 obl _ _ 34 so so ADV RB _ 38 advmod _ Agree=R7-rel-agree|Haiku=38:mark|HaikuPos=SCONJ:IN:_ 35 they they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 38 nsubj:pass _ _ 36 are be AUX VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 38 aux:pass _ _ 37 not not PART RB Polarity=Neg 38 advmod _ _ 38 pinched pinch VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 26 advcl _ _ 39 . . PUNCT . _ 2 punct _ _ ``` ## Pragmatics {#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](https://creativecommons.org/licenses/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](https://md.mova.elamur.ai/free/en/releases/0.4/). - ← previous: [How owls work: silent wings, turning h…, 11](https://md.mova.elamur.ai/free/en/corpora/school/biology/302-how-owls-work-silent-wings-turning-heads-pellets-and-owl-myths/11/) - next →: [How owls work: silent wings, turning h…, 13](https://md.mova.elamur.ai/free/en/corpora/school/biology/302-how-owls-work-silent-wings-turning-heads-pellets-and-owl-myths/13/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/302-how-owls-work-silent-wings-turning-heads-pellets-and-owl-myths/)