--- title: Which is true about the octopus? — How animals hide: camouflage and mimicry · tree and pragmatics description: Which is true about the octopus? Test 9 of lesson 51 «How animals hide: camouflage and mimicry» 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/51-how-animals-hide/t9/) [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/) / [How animals hide: camouflage and mimicry](https://md.mova.elamur.ai/free/en/corpora/questions/biology/51-how-animals-hide/) / t9 # Test 9 · How animals hide: camouflage and mimicry Which is true about the octopus? **Mova's choice:** option 4 · **The right answer:** option 4 · right ✓ · **What happens:** be This is test 9 of lesson 51 «How animals hide: camouflage and mimicry» 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/51-how-animals-hide/#t9). ## The question {#question} ```conllu # sent_id = question:biology:51-how-animals-hide:t9:1 # text = Which is true about the octopus? 1 Which which PRON WDT PronType=Rel 3 nsubj _ _ 2 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 3 cop _ _ 3 true true ADJ JJ Degree=Pos 0 root _ _ 4 about about ADP IN _ 6 case _ _ 5 the the DET DT Definite=Def|PronType=Art 6 det _ _ 6 octopus octopus NOUN NN Number=Sing 3 obl _ SpaceAfter=No 7 ? ? PUNCT . _ 3 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is** | present | | | | | | about the octopus; true *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} It hides by growing a shell like a snail ```conllu # sent_id = question:biology:51-how-animals-hide:t9:o1:1 # text = It hides by growing a shell like a snail 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 2 nsubj _ _ 2 hides hide VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 by by SCONJ IN _ 4 mark _ _ 4 growing grow VERB VBG Tense=Pres|VerbForm=Part 2 advcl _ _ 5 a a DET DT Definite=Ind|PronType=Art 6 det _ _ 6 shell shell NOUN NN Number=Sing 4 obj _ _ 7 like like ADP IN _ 9 case _ _ 8 a a DET DT Definite=Ind|PronType=Art 9 det _ _ 9 snail snail NOUN NN Number=Sing 4 obl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **hide** | present | It | | | | | | vn concealment-16-1 «NP V»: agent=Agent | | 2 | **grow** | gerund | | a shell | | | | like a snail | vn appear-48.1.1 «PP.location V NP»: agent=Location shell=Theme | ### Option 2 {#o2} It can only change colour when it sees something red ```conllu # sent_id = question:biology:51-how-animals-hide:t9:o2:1 # text = It can only change colour when it sees something red 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 4 nsubj _ _ 2 can can AUX MD VerbForm=Fin 4 aux _ _ 3 only only ADV RB _ 4 advmod _ _ 4 change change VERB VB VerbForm=Inf 0 root _ _ 5 colour colour NOUN NN Number=Sing 4 obj _ _ 6 when when SCONJ WRB _ 8 mark _ _ 7 it it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 8 nsubj _ _ 8 sees see VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 4 advcl _ _ 9 something something PRON NN Number=Sing|PronType=Ind 8 obj _ _ 10 red red ADJ JJ Degree=Pos 9 amod _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **change** | can | It | colour | | | | | vn dress-41.1.1-1-1 «NP V NP»: agent=Agent colour=Patient | | 2 | **see** | present | colour | something | | | | | vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer something=Stimulus | ### Option 3 {#o3} It changes colour only when it sleeps ```conllu # sent_id = question:biology:51-how-animals-hide:t9:o3:1 # text = It changes colour only when it sleeps 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 2 nsubj _ _ 2 changes change VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 colour colour NOUN NN Number=Sing 2 obj _ _ 4 only only ADV RB _ 7 advmod _ _ 5 when when ADV WRB PronType=Int 7 advmod _ _ 6 it it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 7 nsubj _ _ 7 sleeps sleep VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 2 parataxis _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **change** | present | It | colour | | | | | vn dress-41.1.1-1-1 «NP V NP»: agent=Agent colour=Patient | | 2 | **sleep** | present | colour | | | | | | vn snooze-40.4-1 «NP V»: agent=Agent | ### Option 4 · ← Mova's choice · ✓ the right answer {#o4} It matches colours well, though it may not see colour like we do ```conllu # sent_id = question:biology:51-how-animals-hide:t9:o4:1 # text = It matches colours well, though it may not see colour like we do 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 2 nsubj _ _ 2 matches match VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 colours colour NOUN NNS Number=Plur 2 obj _ _ 4 well well ADV RB Degree=Pos 2 advmod _ SpaceAfter=No 5 , , PUNCT , _ 10 punct _ _ 6 though though SCONJ IN _ 10 mark _ _ 7 it it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 10 nsubj _ _ 8 may may AUX MD VerbForm=Fin 10 aux _ _ 9 not not PART RB Polarity=Neg 10 advmod _ _ 10 see see VERB VB VerbForm=Inf 2 parataxis _ _ 11 colour colour NOUN NN Number=Sing 10 obj _ _ 12 like like SCONJ IN _ 14 mark _ _ 13 we we PRON PRP Case=Nom|Number=Plur|Person=1|PronType=Prs 14 nsubj _ _ 14 do do VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 10 advcl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **match** | present | It | colours | | | | well *property* | vn amalgamate-22.2-1 «NP V NP»: agent=Agent colour=Patient | | 2 | **not** **see** | may | it | colour | | | | | vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer colour=Stimulus | | 3 | **do** | present | we | | | | | | vn act-114-1 «NP V»: agent=Agent | **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: [How animals hide: camouflage and mimicry, test 8](https://md.mova.elamur.ai/free/en/corpora/questions/biology/51-how-animals-hide/t8/) - next →: [How animals hide: camouflage and mimicry, test 10](https://md.mova.elamur.ai/free/en/corpora/questions/biology/51-how-animals-hide/t10/) - ↑ back to [How animals hide: camouflage and mimicry](https://md.mova.elamur.ai/free/en/corpora/questions/biology/51-how-animals-hide/)