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Test 7 · ★★★ · Snakes and lizards

A lizard dropped its tail to escape a cat. What is different about the tail that grows back?

Mova's choice: option 1 · The right answer: option 1 · right ✓ · Who acts: lizard, tail · What happens: drop, escape, be, grow back · To what, where: tail, cat

This is test 7 · ★★★ of lesson 30 «Snakes and lizards» 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.

The question

Sentence 1: A lizard dropped its tail to escape a cat.

detnsubjnmod:possobjmarkadvcldetobjpunctrootADETlizardNOUNdroppedVERBitsPRONtailNOUNtoPARTescapeVERBaDETcatNOUN.PUNCT
The words, one row each (CoNLL-U)
#wordlemmaUPOSfeaturesheadrelation
1AaDETDefinite=Ind PronType=Art2 lizarddet
2lizardlizardNOUNNumber=Sing3 droppednsubj
3droppeddropVERBMood=Ind Number=Sing Person=3 Tense=Past VerbForm=Finrootroot
4itsitsPRONCase=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs5 tailnmod:poss
5tailtailNOUNNumber=Sing3 droppedobj
6totoPART_7 escapemark
7escapeescapeVERBVerbForm=Inf3 droppedadvcl
8aaDETDefinite=Ind PronType=Art9 catdet
9catcatNOUNNumber=Sing7 escapeobj
10..PUNCT_3 droppedpunct
#verbtense, moodwhowhat, whomto whomwherewhenotherroles by
1droppasta lizardlizard's tailvn put_direction-9.4 «NP V NP»: agent=Agent tail=Theme
2escapeto-infinitivea lizard not said herea catvn escape-51.1-1-1 «NP V NP»: agent=Theme cat=Initial_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.

Sentence 2: What is different about the tail that grows back?

nsubjcopcasedetoblnsubjacl:relcladvmodpunctrootWhatPRONisAUXdifferentADJaboutADPtheDETtailNOUNthatPRONgrowsVERBbackADV?PUNCT
The words, one row each (CoNLL-U)
#wordlemmaUPOSfeaturesheadrelation
1WhatwhatPRONPronType=Int3 differentnsubj
2isbeAUXMood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin3 differentcop
3differentdifferentADJDegree=Posrootroot
4aboutaboutADP_6 tailcase
5thetheDETDefinite=Def PronType=Art6 taildet
6tailtailNOUNNumber=Sing3 differentobl
7thatthatPRONPronType=Rel8 growsnsubj
8growsgrowVERBMood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin6 tailacl:relcl
9backbackADV_8 growsadvmod
10??PUNCT_3 differentpunct
#verbtense, moodwhowhat, whomto whomwherewhenotherroles by
1ispresentabout the tail; different propertytree rules
2grow backpresentthe tailvn appear-48.1.1 «NP V»: agent=Theme

The options

Option 1 · ← Mova's choice · ✓ the right answer

It has cartilage inside instead of bone

nsubjobjadvmodcasefixedoblrootItPRONhasVERBcartilageNOUNinsideADVinsteadADVofADPboneNOUN
The words, one row each (CoNLL-U)
#wordlemmaUPOSfeaturesheadrelation
1ItitPRONCase=Nom Gender=Neut Number=Sing Person=3 PronType=Prs2 hasnsubj
2hashaveVERBMood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Finrootroot
3cartilagecartilageNOUNNumber=Sing2 hasobj
4insideinsideADV_2 hasadvmod
5insteadinsteadADVExtPos=ADP7 bonecase
6ofofADP_5 insteadfixed
7boneboneNOUNNumber=Sing2 hasobl
#verbtense, moodwhowhat, whomto whomwherewhenotherroles by
1havepresentItcartilageinstead bone; inside propertyvn birth-28.2-1 «NP V NP»: agent=Agent cartilage=Patient

Option 2

It grows back exactly the same, with bone

nsubjadvmodadvmoddetxcomppunctcaseparataxisrootItPRONgrowsVERBbackADVexactlyADVtheDETsameADJ,PUNCTwithADPboneNOUN
The words, one row each (CoNLL-U)
#wordlemmaUPOSfeaturesheadrelation
1ItitPRONCase=Nom Gender=Neut Number=Sing Person=3 PronType=Prs2 growsnsubj
2growsgrowVERBMood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Finrootroot
3backbackADV_2 growsadvmod
4exactlyexactlyADV_6 sameadvmod
5thetheDETDefinite=Def PronType=Art6 samedet
6samesameADJDegree=Pos2 growsxcomp
7,,PUNCT_9 bonepunct
8withwithADP_9 bonecase
9boneboneNOUNNumber=Sing2 growsparataxis
#verbtense, moodwhowhat, whomto whomwherewhenotherroles by
1grow backpresentItsame propertyvn appear-48.1.1 «NP V»: agent=Theme

Option 3

It never grows back, so the lizard has no tail for life

nsubjadvmodadvmodpunctadvmoddetnsubjconjdetobjcasenmodrootItPRONneverADVgrowsVERBbackADV,PUNCTsoADVtheDETlizardNOUNhasVERBnoDETtailNOUNforADPlifeNOUN
The words, one row each (CoNLL-U)
#wordlemmaUPOSfeaturesheadrelation
1ItitPRONCase=Nom Gender=Neut Number=Sing Person=3 PronType=Prs3 growsnsubj
2neverneverADVPronType=Neg3 growsadvmod
3growsgrowVERBMood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Finrootroot
4backbackADV_3 growsadvmod
5,,PUNCT_9 haspunct
6sosoADV_9 hasadvmod
7thetheDETDefinite=Def PronType=Art8 lizarddet
8lizardlizardNOUNNumber=Sing9 hasnsubj
9hashaveVERBMood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin3 growsconj
10nonoDETPronType=Neg11 taildet
11tailtailNOUNNumber=Sing9 hasobj
12forforADP_13 lifecase
13lifelifeNOUNNumber=Sing11 tailnmod
#verbtense, moodwhowhat, whomto whomwherewhenotherroles by
1not grow backpresentItvn appear-48.1.1 «NP V»: agent=Theme
2havepresentthe lizardno tailfor lifevn birth-28.2-1 «NP V NP»: agent=Agent tail=Patient

Option 4

It grows back as two tails

nsubjadvmodcasenummodoblrootItPRONgrowsVERBbackADVasADPtwoNUMtailsNOUN
The words, one row each (CoNLL-U)
#wordlemmaUPOSfeaturesheadrelation
1ItitPRONCase=Nom Gender=Neut Number=Sing Person=3 PronType=Prs2 growsnsubj
2growsgrowVERBMood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Finrootroot
3backbackADV_2 growsadvmod
4asasADP_6 tailscase
5twotwoNUMNumForm=Word NumType=Card6 tailsnummod
6tailstailNOUNNumber=Plur2 growsobl
#verbtense, moodwhowhat, whomto whomwherewhenotherroles by
1grow backpresentItas two tailsvn appear-48.1.1 «NP V»: agent=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.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/questions/biology/30-snakes-and-lizards/t7/