--- title: Constrictors coil around prey and tighten each time it breathes out;… — Big snakes: pythons, boas and anacondas, and how… · tree and pragmatics description: Constrictors coil around prey and tighten each time it breathes out; scientists found the squeeze mainly stops the blood flowing, so the prey faints within moments rather than being crushed. Who acts: Constrictors, reward, scientists, squeeze. A sentence of the lesson «Big snakes: pythons, boas and --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/321-big-snakes-pythons-boas-and-anacondas-and-how-big-they-really-get/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/) / [Big snakes: pythons, boas and anaconda…](https://md.mova.elamur.ai/free/en/corpora/school/biology/321-big-snakes-pythons-boas-and-anacondas-and-how-big-they-really-get/) / 12 # Big snakes: pythons, boas and anacondas, and how big they really get, sentence 12 Constrictors coil around prey and tighten each time it breathes out; scientists found the squeeze mainly stops the blood flowing, so the prey faints within moments rather than being crushed. **Who acts:** Constrictors, reward, scientists, squeeze, blood, prey · **What happens:** coil, tighten, breathe out, find, stop, flow · **To what, where:** prey, time · **Speech:** someone speaks here This is a sentence of the lesson «Big snakes: pythons, boas and anacondas, and how big they really get» 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 (Constrictors, reward, scientists, squeeze), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:biology:321-big-snakes-pythons-boas-and-anacondas-and-how-big-they-really-get.lesson:12 # text = Constrictors coil around prey and tighten each time it breathes out; scientists found the squeeze mainly stops the blood flowing, so the prey faints within moments rather than being crushed. # source = school lesson (ours) # course = biology # lesson = 321-big-snakes-pythons-boas-and-anacondas-and-how-big-they-really-get.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): R7-rel-agree ×3 1 Constrictors constrictor NOUN NNS Number=Plur 2 nsubj _ Agree=R7-rel-agree|Haiku=2:compound 2 coil coil VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 around around ADP IN _ 4 case _ _ 4 prey prey NOUN NN Number=Sing 2 obl _ _ 5 and and CCONJ CC _ 6 cc _ _ 6 tighten tighten VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 2 conj _ _ 7 each each DET DT PronType=Tot 8 det _ _ 8 time time NOUN NN Number=Sing 6 obl _ Agree=R7-rel-agree|Haiku=6:obj 9 it it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 10 nsubj _ _ 10 breathes breathe VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 8 acl:relcl _ _ 11 out out ADP RP _ 10 compound:prt _ _ 12 ; ; PUNCT , _ 14 punct _ _ 13 scientists scientist NOUN NNS Number=Plur 14 nsubj _ _ 14 found find VERB VBD Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin 2 parataxis _ _ 15 the the DET DT Definite=Def|PronType=Art 16 det _ _ 16 squeeze squeeze NOUN NN Number=Sing 18 nsubj _ _ 17 mainly mainly ADV RB _ 18 advmod _ _ 18 stops stop VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 14 ccomp _ _ 19 the the DET DT Definite=Def|PronType=Art 20 det _ _ 20 blood blood NOUN NN Number=Sing 21 nsubj _ _ 21 flowing flow VERB VBG VerbForm=Ger 18 xcomp _ Agree=R7-rel-agree|Haiku=18:ccomp 22 , , PUNCT , _ 26 punct _ _ 23 so so ADV RB _ 26 advmod _ _ 24 the the DET DT Definite=Def|PronType=Art 25 det _ _ 25 prey prey NOUN NN Number=Sing 26 nsubj _ _ 26 faints faint VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 14 conj _ _ 27 within within ADP IN _ 28 case _ _ 28 moments moment NOUN NNS Number=Plur 26 obl _ _ 29 rather rather ADV RB ExtPos=CCONJ 32 cc _ _ 30 than than ADP IN _ 29 fixed _ _ 31 being be AUX VBG Tense=Pres|VerbForm=Part 32 aux:pass _ _ 32 crushed crush VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 26 conj _ _ 33 . . PUNCT . _ 2 punct _ _ ``` ## Pragmatics {#pragmatics} - form: statement - act: assert - voice: narrator - polarity: none - teacher: kept the draft | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **coil** | present | Constrictors | | | prey | | | vn coil-9.6-1 «NP V PP.location»: agent=Theme around prey=Destination | | 2 | **tighten** | present | Constrictors *not said here* | | | | time | | vn other\_cos-45.4 «NP.patient V»: agent=Patient | | 3 | **breathe out** | present | reward | each time *not said here* | | | | | vn breathe-40.1.2-1 «NP V NP»: agent=Agent time=Theme | | 4 | **find** | past | scientists | | | | | | vn declare-29.4-1-1 «NP V what S\_INF»: agent=Agent clause=Theme | | 5 | **stop** | present | the squeeze | | | | | mainly *property* | vn stop-55.4-1-1 «NP V S\_ING»: agent=Affector clause=Eventuality | | 6 | **flow** | gerund | the blood | | | | | | vn appear-48.1.1 «NP V»: agent=Theme | | 7 | **faint** | present | the prey | | | | moment | | vn change\_bodily\_state-40.8.4 «NP V»: agent=Experiencer | | 8 | **crush** | gerund · passive | the prey *not said here* | | | | | | vn carve-21.2-1 «NP V ADVP-Middle» | 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:321-big-snakes-pythons-boas-and-anacondas-and-how-big-they-really-get.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): R7-rel-agree ×3. **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: [Big snakes: pythons, boas and anaconda…, 11](https://md.mova.elamur.ai/free/en/corpora/school/biology/321-big-snakes-pythons-boas-and-anacondas-and-how-big-they-really-get/11/) - next →: [Big snakes: pythons, boas and anaconda…, 13](https://md.mova.elamur.ai/free/en/corpora/school/biology/321-big-snakes-pythons-boas-and-anacondas-and-how-big-they-really-get/13/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/321-big-snakes-pythons-boas-and-anacondas-and-how-big-they-really-get/)