--- title: Rattlesnakes and other pit vipers have two heat-sensing pits on thei… — Hidden senses: magnetic birds and turtles, ultra… · tree and pragmatics description: Rattlesnakes and other pit vipers have two heat-sensing pits on their faces, so they can find a warm mouse in total darkness. Who acts: Rattlesnakes. A sentence of the lesson «Hidden senses: magnetic birds and turtles, ultraviolet bees, heat-seeing snakes, whiskers and lateral lines» of the biology --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/232-hidden-senses-magnetic-birds-ultraviolet-bees-heat-seeing-snakes/10/) [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/) / [Hidden senses: magnetic birds and turt…](https://md.mova.elamur.ai/free/en/corpora/school/biology/232-hidden-senses-magnetic-birds-ultraviolet-bees-heat-seeing-snakes/) / 10 # Hidden senses: magnetic birds and turtles, ultraviolet bees, heat-seeing snakes, whiskers and lateral lines, sentence 10 Rattlesnakes and other pit vipers have two heat-sensing pits on their faces, so they can find a warm mouse in total darkness. **Who acts:** Rattlesnakes · **What happens:** have, sense, find · **To what, where:** two sensing pits, faces, warm mouse, total darkness This is a sentence of the lesson «Hidden senses: magnetic birds and turtles, ultraviolet bees, heat-seeing snakes, whiskers and lateral lines» 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 (Rattlesnakes), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:biology:232-hidden-senses-magnetic-birds-ultraviolet-bees-heat-seeing-snakes.lesson:10 # text = Rattlesnakes and other pit vipers have two heat-sensing pits on their faces, so they can find a warm mouse in total darkness. # source = school lesson (ours) # course = biology # lesson = 232-hidden-senses-magnetic-birds-ultraviolet-bees-heat-seeing-snakes.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 ×1 1 Rattlesnakes rattlesnake NOUN NNS Number=Plur 6 nsubj _ _ 2 and and CCONJ CC _ 5 cc _ _ 3 other other ADJ JJ Degree=Pos 5 amod _ _ 4 pit pit NOUN NN Number=Sing 5 compound _ _ 5 vipers viper NOUN NNS Number=Plur 1 conj _ _ 6 have have VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 7 two two NUM CD NumForm=Word|NumType=Card 11 nummod _ _ 8 heat heat NOUN NN Number=Sing 10 compound _ _ 9 - - PUNCT HYPH _ 8 punct _ _ 10 sensing sense VERB VBG VerbForm=Ger 11 amod _ _ 11 pits pit NOUN NNS Number=Plur 6 obj _ _ 12 on on ADP IN _ 14 case _ _ 13 their their PRON PRP$ Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs 14 nmod:poss _ _ 14 faces face NOUN NNS Number=Plur 6 obl _ Agree=R5-strong|Haiku=11:nmod 15 , , PUNCT , _ 19 punct _ _ 16 so so ADV RB _ 19 advmod _ _ 17 they they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 19 nsubj _ _ 18 can can AUX MD VerbForm=Fin 19 aux _ _ 19 find find VERB VB VerbForm=Inf 6 conj _ _ 20 a a DET DT Definite=Ind|PronType=Art 22 det _ _ 21 warm warm ADJ JJ Degree=Pos 22 amod _ _ 22 mouse mouse NOUN NN Number=Sing 19 obj _ _ 23 in in ADP IN _ 25 case _ _ 24 total total ADJ JJ Degree=Pos 25 amod _ _ 25 darkness darkness NOUN NN Number=Sing 19 obl _ _ 26 . . PUNCT . _ 6 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 | Rattlesnakes and other pit vipers | two sensing pits | | Rattlesnakes's faces | | | vn birth-28.2-1 «NP V NP»: agent=Agent pit=Patient | | 2 | **sense** | gerund | | | | | | | vn see-30.1-1 «NP V S\_ING»: agent=Experiencer | | 3 | **find** | can | Rattlesnakes *= rattlesnake* | a warm mouse | | total darkness | | | vn discover-84 «NP V NP»: agent=Agent mouse=Topic | 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:232-hidden-senses-magnetic-birds-ultraviolet-bees-heat-seeing-snakes.lesson:10`. **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 ×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: [Hidden senses: magnetic birds and turt…, 9](https://md.mova.elamur.ai/free/en/corpora/school/biology/232-hidden-senses-magnetic-birds-ultraviolet-bees-heat-seeing-snakes/9/) - next →: [Hidden senses: magnetic birds and turt…, 11](https://md.mova.elamur.ai/free/en/corpora/school/biology/232-hidden-senses-magnetic-birds-ultraviolet-bees-heat-seeing-snakes/11/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/232-hidden-senses-magnetic-birds-ultraviolet-bees-heat-seeing-snakes/)