--- title: Why might a polar bear's hollow see-through hairs be useful in the A… — Bears · tree and pragmatics description: Why might a polar bear's hollow see-through hairs be useful in the Arctic? Test 4 of lesson 23 «Bears» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/biology/23-bears/t4/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [Biology](https://md.mova.elamur.ai/free/en/corpora/questions/biology/) / [Bears](https://md.mova.elamur.ai/free/en/corpora/questions/biology/23-bears/) / t4 # Test 4 · Bears Why might a polar bear's hollow see-through hairs be useful in the Arctic? **Mova's choice:** option 2 · **The right answer:** option 2 · right ✓ · **Who acts:** hollow through hairs · **What happens:** be · **To what, where:** Arctic This is test 4 of lesson 23 «Bears» of the biology course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/biology/23-bears/#t4). ## The question {#question} ```conllu # sent_id = question:biology:23-bears:t4:1 # text = Why might a polar bear's hollow see-through hairs be useful in the Arctic? 1 Why why ADV WRB PronType=Int 13 advmod _ _ 2 might might AUX MD VerbForm=Fin 13 aux _ _ 3 a a DET DT Definite=Ind|PronType=Art 5 det _ _ 4 polar polar ADJ JJ Degree=Pos 5 amod _ _ 5 bear bear NOUN NN Number=Sing 11 nmod:poss _ SpaceAfter=No 6 's 's PART POS _ 5 case _ _ 7 hollow hollow ADJ JJ Degree=Pos 11 amod _ _ 8 see see ADJ JJ Degree=Pos 10 amod _ SpaceAfter=No 9 - - PUNCT HYPH _ 8 punct _ SpaceAfter=No 10 through thorough ADJ JJ Degree=Pos 11 amod _ _ 11 hairs hair NOUN NNS Number=Plur 13 nsubj _ _ 12 be be AUX VB VerbForm=Inf 13 cop _ _ 13 useful useful ADJ JJ Degree=Pos 0 root _ _ 14 in in ADP IN _ 16 case _ _ 15 the the DET DT Definite=Def|PronType=Art 16 det _ _ 16 Arctic Arctic PROPN NNP Number=Sing 13 obl _ SpaceAfter=No 17 ? ? PUNCT . _ 13 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is** | might | a polar bear's hollow through hairs | | | the Arctic | | useful *property* | tree rules | 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. ## The options {#options} ### Option 1 {#o1} They let the bear see right through its own fur ```conllu # sent_id = question:biology:23-bears:t4:o1:1 # text = They let the bear see right through its own fur 1 They they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 2 nsubj _ _ 2 let let VERB VBD Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin 0 root _ _ 3 the the DET DT Definite=Def|PronType=Art 4 det _ _ 4 bear bear NOUN NN Number=Sing 2 obj _ _ 5 see see VERB VB VerbForm=Inf 2 xcomp _ _ 6 right right ADV RB _ 5 advmod _ _ 7 through through ADP IN _ 10 case _ _ 8 its its PRON PRP$ Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs 10 nmod:poss _ _ 9 own own ADJ JJ Degree=Pos 10 amod _ _ 10 fur fur NOUN NN Number=Sing 5 obl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **let** | past | They | the bear | | | | | tree rules | | 2 | **see** | infinitive | the bear *not said here* | | | bear's own fur | | right *property* | vn comprehend-87.2-1-1 «NP V»: agent=Experiencer | ### Option 2 · ← Mova's choice · ✓ the right answer {#o2} They look white on snow and trap warmth ```conllu # sent_id = question:biology:23-bears:t4:o2:1 # text = They look white on snow and trap warmth 1 They they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 2 nsubj _ _ 2 look look VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 white white ADJ JJ Degree=Pos 2 xcomp _ _ 4 on on ADP IN _ 5 case _ _ 5 snow snow NOUN NN Number=Sing 2 obl _ _ 6 and and CCONJ CC _ 8 cc _ _ 7 trap trap NOUN NN Number=Sing 8 compound _ _ 8 warmth warmth NOUN NN Number=Sing 5 conj _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **look** | present | They | | | | | on snow and trap warmth; white *property* | vn peer-30.3 «NP V PP.theme»: agent=Agent on snow=Theme | ### Option 3 {#o3} They glow in the dark to help it find seals ```conllu # sent_id = question:biology:23-bears:t4:o3:1 # text = They glow in the dark to help it find seals 1 They they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 2 nsubj _ _ 2 glow glow VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 in in ADP IN _ 5 case _ _ 4 the the DET DT Definite=Def|PronType=Art 5 det _ _ 5 dark dark NOUN NN Number=Sing 2 obl _ _ 6 to to PART TO _ 7 mark _ _ 7 help help VERB VB VerbForm=Inf 2 advcl _ _ 8 it it PRON PRP Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs 7 obj _ _ 9 find find VERB VB VerbForm=Inf 7 xcomp _ _ 10 seals seal NOUN NNS Number=Plur 9 obj _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **glow** | present | They | | | the dark | | | vn light\_emission-43.1 «NP V PP.location»: agent=Theme in dark=Location | | 2 | **help** | to-infinitive | They *not said here* | dark | | | | | vn help-72.1-1-1 «NP V NP S\_INF»: agent=Agent it=Beneficiary clause=Theme | | 3 | **find** | infinitive | dark *not said here* | seals | | | | | vn discover-84 «NP V NP»: agent=Agent seal=Topic | ### Option 4 {#o4} They make the bear float on water like a balloon ```conllu # sent_id = question:biology:23-bears:t4:o4:1 # text = They make the bear float on water like a balloon 1 They they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 2 nsubj _ _ 2 make make VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 the the DET DT Definite=Def|PronType=Art 4 det _ _ 4 bear bear NOUN NN Number=Sing 5 nsubj _ _ 5 float float VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 2 xcomp _ _ 6 on on ADP IN _ 7 case _ _ 7 water water NOUN NN Number=Sing 5 obl _ _ 8 like like ADP IN _ 10 case _ _ 9 a a DET DT Definite=Ind|PronType=Art 10 det _ _ 10 balloon balloon NOUN NN Number=Sing 5 obl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **make** | present | They | | | | | | tree rules | | 2 | **float** | present | the bear | | | water | | like a balloon | vn run-51.3.2-2 «NP V PP.location»: agent=Theme on water=Trajectory | **Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License. - ← previous: [Bears, test 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/23-bears/t3/) - next →: [Bears, test 5](https://md.mova.elamur.ai/free/en/corpora/questions/biology/23-bears/t5/) - ↑ back to [Bears](https://md.mova.elamur.ai/free/en/corpora/questions/biology/23-bears/)