--- title: Why don't your own eyes shine green in a torch beam? — How real cats hunt: stalking, waiting… · tree and pragmatics description: Why don't your own eyes shine green in a torch beam? Test 3 · ★★ of lesson 119 «How real cats hunt: stalking, waiting and pouncing» 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 wrong. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/biology/119-how-real-cats-hunt/t3/) [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 real cats hunt: stalking, waiting…](https://md.mova.elamur.ai/free/en/corpora/questions/biology/119-how-real-cats-hunt/) / t3 # Test 3 · ★★ · How real cats hunt: stalking, waiting and pouncing Why don't your own eyes shine green in a torch beam? **Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** own eyes · **What happens:** not shine · **To what, where:** torch beam This is test 3 · ★★ of lesson 119 «How real cats hunt: stalking, waiting and pouncing» 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/119-how-real-cats-hunt/#t3). ## The question {#question} ```conllu # sent_id = question:biology:119-how-real-cats-hunt:t3:1 # text = Why don't your own eyes shine green in a torch beam? 1 Why why ADV WRB PronType=Int 7 advmod _ _ 2 do do AUX VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 7 aux _ SpaceAfter=No 3 n't not PART RB Polarity=Neg 7 advmod _ _ 4 your your PRON PRP$ Case=Gen|Person=2|Poss=Yes|PronType=Prs 6 nmod:poss _ _ 5 own own ADJ JJ Degree=Pos 6 amod _ _ 6 eyes eye NOUN NNS Number=Plur 7 nsubj _ _ 7 shine shine VERB VBP Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin 0 root _ _ 8 green green ADJ JJ Degree=Pos 7 xcomp _ _ 9 in in ADP IN _ 12 case _ _ 10 a a DET DT Definite=Ind|PronType=Art 12 det _ _ 11 torch torch NOUN NN Number=Sing 12 compound _ _ 12 beam beam NOUN NN Number=Sing 7 obl _ SpaceAfter=No 13 ? ? PUNCT . _ 7 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **not** **shine** | present · do-support | your own eyes | | | a torch beam | | green *property* | vn light\_emission-43.1 «NP V PP.location»: agent=Theme in beam=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 {#o1} Our eyes are always closed at night, even when we walk about ```conllu # sent_id = question:biology:119-how-real-cats-hunt:t3:o1:1 # text = Our eyes are always closed at night, even when we walk about 1 Our our PRON PRP$ Case=Gen|Number=Plur|Person=1|Poss=Yes|PronType=Prs 2 nmod:poss _ _ 2 eyes eye NOUN NNS Number=Plur 5 nsubj:pass _ _ 3 are be AUX VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 5 aux:pass _ _ 4 always always ADV RB PronType=Tot 5 advmod _ _ 5 closed close VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 0 root _ _ 6 at at ADP IN _ 7 case _ _ 7 night night NOUN NN Number=Sing 5 obl _ SpaceAfter=No 8 , , PUNCT , _ 12 punct _ _ 9 even even ADV RB _ 12 advmod _ _ 10 when when SCONJ WRB _ 12 mark _ _ 11 we we PRON PRP Case=Nom|Number=Plur|Person=1|PronType=Prs 12 nsubj _ _ 12 walk walk VERB VBP Mood=Ind|Number=Plur|Person=1|Tense=Pres|VerbForm=Fin 5 conj _ _ 13 about about ADV RB _ 12 advmod _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **close** | present · passive | | Our eyes | | | night | always *property* | vn crane-40.3.2 «NP V NP»: subject=Patient | | 2 | **walk** | present | we | | | | | about *property* | vn run-51.3.2-2-1 «NP V»: agent=Theme | ### Option 2 · ✓ the right answer {#o2} People do not have the shiny tapetum layer behind the retina ```conllu # sent_id = question:biology:119-how-real-cats-hunt:t3:o2:1 # text = People do not have the shiny tapetum layer behind the retina 1 People people NOUN NNS Number=Plur 4 nsubj _ _ 2 do do AUX VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 4 aux _ _ 3 not not PART RB Polarity=Neg 4 advmod _ _ 4 have have VERB VB VerbForm=Inf 0 root _ _ 5 the the DET DT Definite=Def|PronType=Art 8 det _ _ 6 shiny shiny ADJ JJ Degree=Pos 8 amod _ _ 7 tapetum tapetum NOUN NN Number=Sing 8 compound _ _ 8 layer layer NOUN NN Number=Sing 4 obj _ _ 9 behind behind ADP IN _ 11 case _ _ 10 the the DET DT Definite=Def|PronType=Art 11 det _ _ 11 retina retina NOUN NN Number=Sing 8 nmod _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **not** **have** | present · do-support | People | the shiny tapetum layer | | the retina | | | vn birth-28.2-1 «NP V NP»: agent=Agent layer=Patient | ### Option 3 {#o3} Our eyes are too small to catch any torch light ```conllu # sent_id = question:biology:119-how-real-cats-hunt:t3:o3:1 # text = Our eyes are too small to catch any torch light 1 Our our PRON PRP$ Case=Gen|Number=Plur|Person=1|Poss=Yes|PronType=Prs 2 nmod:poss _ _ 2 eyes eye NOUN NNS Number=Plur 5 nsubj _ _ 3 are be AUX VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 5 cop _ _ 4 too too ADV RB _ 5 advmod _ _ 5 small small ADJ JJ Degree=Pos 0 root _ _ 6 to to PART TO _ 7 mark _ _ 7 catch catch VERB VB VerbForm=Inf 5 advcl _ _ 8 any any DET DT PronType=Ind 10 det _ _ 9 torch torch NOUN NN Number=Sing 10 compound _ _ 10 light light NOUN NN Number=Sing 7 obj _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is** | present | Our eyes | | | | | small *property* | tree rules | | 2 | **catch** | to-infinitive | Our eyes *not said here* | any torch light | | | | | vn get-13.5.1 «NP V NP»: agent=Agent light=Theme | ### Option 4 {#o4} Torches only work on animals ```conllu # sent_id = question:biology:119-how-real-cats-hunt:t3:o4:1 # text = Torches only work on animals 1 Torches torch NOUN NNS Number=Plur 3 nsubj _ _ 2 only only ADV RB _ 3 advmod _ _ 3 work work VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 4 on on ADP IN _ 5 case _ _ 5 animals animal NOUN NNS Number=Plur 3 obl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **work** | present | Torches | | | | | on animals | vn employment-95.3 «NP V PP.theme»: agent=Agent on animal=Theme | **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 real cats hunt: stalking, waiting…, test 2](https://md.mova.elamur.ai/free/en/corpora/questions/biology/119-how-real-cats-hunt/t2/) - next →: [How real cats hunt: stalking, waiting…, test 4](https://md.mova.elamur.ai/free/en/corpora/questions/biology/119-how-real-cats-hunt/t4/) - ↑ back to [How real cats hunt: stalking, waiting and pouncing](https://md.mova.elamur.ai/free/en/corpora/questions/biology/119-how-real-cats-hunt/)