--- title: How can a bat flying through a dark wood avoid a thin wire? — Myth check: are bats blind? · tree and pragmatics description: How can a bat flying through a dark wood avoid a thin wire? Test 11 · ★★ of lesson 153 «Myth check: are bats blind?» 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/153-are-bats-blind/t11/) [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/) / [Myth check: are bats blind?](https://md.mova.elamur.ai/free/en/corpora/questions/biology/153-are-bats-blind/) / t11 # Test 11 · ★★ · Myth check: are bats blind? How can a bat flying through a dark wood avoid a thin wire? **Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** bat · **What happens:** fly, avoid · **To what, where:** dark wood, thin wire This is test 11 · ★★ of lesson 153 «Myth check: are bats blind?» 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/153-are-bats-blind/#t11). ## The question {#question} ```conllu # sent_id = question:biology:153-are-bats-blind:t11:1 # text = How can a bat flying through a dark wood avoid a thin wire? 1 How how ADV WRB PronType=Int 10 advmod _ _ 2 can can AUX MD VerbForm=Fin 10 aux _ _ 3 a a DET DT Definite=Ind|PronType=Art 4 det _ _ 4 bat bat NOUN NN Number=Sing 10 nsubj _ _ 5 flying fly VERB VBG VerbForm=Ger 4 acl _ _ 6 through through ADP IN _ 9 case _ _ 7 a a DET DT Definite=Ind|PronType=Art 9 det _ _ 8 dark dark ADJ JJ Degree=Pos 9 amod _ _ 9 wood wood NOUN NN Number=Sing 5 obl _ _ 10 avoid avoid VERB VB VerbForm=Inf 0 root _ _ 11 a a DET DT Definite=Ind|PronType=Art 13 det _ _ 12 thin thin ADJ JJ Degree=Pos 13 amod _ _ 13 wire wire NOUN NN Number=Sing 10 obj _ SpaceAfter=No 14 ? ? PUNCT . _ 10 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **fly** | gerund | a bat *not said here* | | | a dark wood | | | vn spatial\_configuration-47.6-1 «NP V PP.location»: agent=Theme through wood=Location | | 2 | **avoid** | can | a bat | a thin wire | | | | | vn avoid-52 «NP V NP.location»: agent=Agent wire=Location | 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 · ← Mova's choice · ✓ the right answer {#o1} It hears the echo of its calls coming back from the wire ```conllu # sent_id = question:biology:153-are-bats-blind:t11:o1:1 # text = It hears the echo of its calls coming back from the wire 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 2 nsubj _ _ 2 hears hear VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 the the DET DT Definite=Def|PronType=Art 4 det _ _ 4 echo echo NOUN NN Number=Sing 2 obj _ _ 5 of of ADP IN _ 7 case _ _ 6 its its PRON PRP$ Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs 7 nmod:poss _ _ 7 calls call NOUN NNS Number=Plur 4 nmod _ _ 8 coming come VERB VBG VerbForm=Ger 7 acl _ _ 9 back back ADV RB _ 8 advmod _ _ 10 from from ADP IN _ 12 case _ _ 11 the the DET DT Definite=Def|PronType=Art 12 det _ _ 12 wire wire NOUN NN Number=Sing 8 obl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **hear** | present | It | the echo of echo's calls | | | | | vn see-30.1-1-1 «NP V S»: agent=Experiencer echo=Stimulus | | 2 | **come back** | gerund | echo's calls *not said here* | | | the wire | | | vn escape-51.1-1 «NP V PP.initial\_location»: agent=Theme from wire=Initial\_Location | | 3 | **call** | | echo | | | | | | nom call «communication transitive»: poss=agent | ### Option 2 {#o2} It sees the wire glowing ```conllu # sent_id = question:biology:153-are-bats-blind:t11:o2:1 # text = It sees the wire glowing 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 2 nsubj _ _ 2 sees see VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 the the DET DT Definite=Def|PronType=Art 4 det _ _ 4 wire wire NOUN NN Number=Sing 2 obj _ _ 5 glowing glow VERB VBG VerbForm=Ger 4 acl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **see** | present | It | the wire | | | | | vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer wire=Stimulus | | 2 | **glow** | gerund | the wire *not said here* | | | | | | vn light\_emission-43.1 «NP V»: agent=Theme | ### Option 3 {#o3} It remembers exactly where the wire was from the night before ```conllu # sent_id = question:biology:153-are-bats-blind:t11:o3:1 # text = It remembers exactly where the wire was from the night before 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 2 nsubj _ _ 2 remembers remember VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 exactly exactly ADV RB _ 4 advmod _ _ 4 where where ADV WRB PronType=Rel 10 advmod _ _ 5 the the DET DT Definite=Def|PronType=Art 6 det _ _ 6 wire wire NOUN NN Number=Sing 10 nsubj _ _ 7 was be AUX VBD Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin 10 cop _ _ 8 from from ADP IN _ 10 case _ _ 9 the the DET DT Definite=Def|PronType=Art 10 det _ _ 10 night night NOUN NN Number=Sing 2 ccomp _ _ 11 before before ADV RB _ 10 advmod _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **remember** | present | It | | | | | | vn characterize-29.2-1-1 «NP V S\_ING»: agent=Agent | | 2 | **is** | past | the wire | | | | from the night | before *property* | tree rules | ### Option 4 {#o4} It smells the metal ```conllu # sent_id = question:biology:153-are-bats-blind:t11:o4:1 # text = It smells the metal 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 2 nsubj _ _ 2 smells smell VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 the the DET DT Definite=Def|PronType=Art 4 det _ _ 4 metal metal NOUN NN Number=Sing 2 obj _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **smell** | present | It | the metal | | | | | vn see-30.1 «NP V NP»: agent=Experiencer metal=Stimulus | **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: [Myth check: are bats blind?, test 10](https://md.mova.elamur.ai/free/en/corpora/questions/biology/153-are-bats-blind/t10/) - next →: [Myth check: are bats blind?, exam 1](https://md.mova.elamur.ai/free/en/corpora/questions/biology/153-are-bats-blind/e1/) - ↑ back to [Myth check: are bats blind?](https://md.mova.elamur.ai/free/en/corpora/questions/biology/153-are-bats-blind/)