--- title: Why would people build special bridges just for crabs? — Migration: the great journeys · tree and pragmatics description: Why would people build special bridges just for crabs? Test 10 · ★★ of lesson 54 «Migration: the great journeys» 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/54-migration-the-great-journeys/t10/) [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/) / [Migration: the great journeys](https://md.mova.elamur.ai/free/en/corpora/questions/biology/54-migration-the-great-journeys/) / t10 # Test 10 · ★★ · Migration: the great journeys Why would people build special bridges just for crabs? **Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** people · **What happens:** build · **To what, where:** special bridges This is test 10 · ★★ of lesson 54 «Migration: the great journeys» 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/54-migration-the-great-journeys/#t10). ## The question {#question} ```conllu # sent_id = question:biology:54-migration-the-great-journeys:t10:1 # text = Why would people build special bridges just for crabs? 1 Why why ADV WRB PronType=Int 4 advmod _ _ 2 would would AUX MD VerbForm=Fin 4 aux _ _ 3 people people NOUN NNS Number=Plur 4 nsubj _ _ 4 build build VERB VBP Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin 0 root _ _ 5 special special ADJ JJ Degree=Pos 6 amod _ _ 6 bridges bridge NOUN NNS Number=Plur 4 obj _ _ 7 just just ADV RB _ 9 advmod _ _ 8 for for ADP IN _ 9 case _ _ 9 crabs crab NOUN NNS Number=Plur 4 obl _ SpaceAfter=No 10 ? ? PUNCT . _ 4 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **build** | would | people | special bridges | | | | for crabs | vn build-26.1-1 «NP V NP PP.beneficiary»: agent=Agent bridge=Product for crab=Beneficiary | 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} To help the crabs go shopping ```conllu # sent_id = question:biology:54-migration-the-great-journeys:t10:o1:1 # text = To help the crabs go shopping 1 To to PART TO _ 2 mark _ _ 2 help help VERB VB Mood=Imp|VerbForm=Fin 0 root _ _ 3 the the DET DT Definite=Def|PronType=Art 4 det _ _ 4 crabs crab NOUN NNS Number=Plur 5 nsubj _ _ 5 go go VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 2 ccomp _ _ 6 shopping shop VERB VBG VerbForm=Ger 5 xcomp _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **help** | to-infinitive | | | | | | | vn help-72.1-1-1 «NP V NP S\_INF»: agent=Agent clause=Theme | | 2 | **go** | present | the crabs | | | | | | vn say-37.7 «NP V S-Quote»: agent=Agent clause=Topic | | 3 | **shop** | gerund | the crabs *not said here* | | | | | | vn search-35.2 «NP V PP.location»: agent=Agent | ### Option 2 {#o2} So tourists can get closer ```conllu # sent_id = question:biology:54-migration-the-great-journeys:t10:o2:1 # text = So tourists can get closer 1 So so ADV RB _ 4 advmod _ _ 2 tourists tourist NOUN NNS Number=Plur 4 nsubj _ _ 3 can can AUX MD VerbForm=Fin 4 aux _ _ 4 get get VERB VB VerbForm=Inf 0 root _ _ 5 closer close ADJ JJR Degree=Cmp 4 xcomp _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **get** | can | tourists | | | | | close *property* | vn comprehend-87.2-1 «NP V S\_ING»: agent=Experiencer | ### Option 3 {#o3} Because the crabs bite the tyres of the cars and the buses that pass ```conllu # sent_id = question:biology:54-migration-the-great-journeys:t10:o3:1 # text = Because the crabs bite the tyres of the cars and the buses that pass 1 Because because SCONJ IN _ 4 mark _ _ 2 the the DET DT Definite=Def|PronType=Art 3 det _ _ 3 crabs crab NOUN NNS Number=Plur 4 nsubj _ _ 4 bite bite VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 5 the the DET DT Definite=Def|PronType=Art 6 det _ _ 6 tyres tyre NOUN NNS Number=Plur 4 obj _ _ 7 of of ADP IN _ 9 case _ _ 8 the the DET DT Definite=Def|PronType=Art 9 det _ _ 9 cars car NOUN NNS Number=Plur 6 nmod _ _ 10 and and CCONJ CC _ 12 cc _ _ 11 the the DET DT Definite=Def|PronType=Art 12 det _ _ 12 buses bus NOUN NNS Number=Plur 9 conj _ _ 13 that that PRON WDT PronType=Rel 14 nsubj _ _ 14 pass pass VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 12 acl:relcl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **bite** | present | the crabs | the tyres of the cars and the buses | | | | | vn swat-18.2 «NP V NP»: agent=Agent tyre=Patient | | 2 | **pass** | present | the buses | | | | | | vn occur-48.3-1 «NP V»: agent=Theme | ### Option 4 · ✓ the right answer {#o4} So millions of crabs can reach the sea without being squashed on roads ```conllu # sent_id = question:biology:54-migration-the-great-journeys:t10:o4:1 # text = So millions of crabs can reach the sea without being squashed on roads 1 So so ADV RB _ 6 advmod _ _ 2 millions million NOUN NNS Number=Plur 6 nsubj _ _ 3 of of ADP IN _ 4 case _ _ 4 crabs crab NOUN NNS Number=Plur 2 nmod _ _ 5 can can AUX MD VerbForm=Fin 6 aux _ _ 6 reach reach VERB VB VerbForm=Inf 0 root _ _ 7 the the DET DT Definite=Def|PronType=Art 8 det _ _ 8 sea sea NOUN NN Number=Sing 6 obj _ _ 9 without without SCONJ IN _ 11 mark _ _ 10 being be AUX VBG Tense=Pres|VerbForm=Part 11 aux:pass _ _ 11 squashed squash VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 6 advcl _ _ 12 on on ADP IN _ 13 case _ _ 13 roads road NOUN NNS Number=Plur 11 obl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **reach** | can | millions of crabs | the sea | | | | | vn body\_motion-49.2-1-1 «NP V NP ADV»: agent=Agent sea=Theme | | 2 | **squash** | gerund · passive | millions of crabs *not said here* | | | roads | | | vn funnel-9.3-1 «NP V NP PP.trajectory»: on road=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: [Migration: the great journeys, test 9](https://md.mova.elamur.ai/free/en/corpora/questions/biology/54-migration-the-great-journeys/t9/) - next →: [Migration: the great journeys, test 11](https://md.mova.elamur.ai/free/en/corpora/questions/biology/54-migration-the-great-journeys/t11/) - ↑ back to [Migration: the great journeys](https://md.mova.elamur.ai/free/en/corpora/questions/biology/54-migration-the-great-journeys/)