--- title: Identify the principal origin of the acid responsible for the decay… — Teeth: enamel, sugar, holes, brushing… · tree and pragmatics description: Identify the principal origin of the acid responsible for the decay of dental enamel. Exam question 1 of lesson 352 «Teeth: enamel, sugar, holes, brushing and the dentist» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/biology/352-teeth-enamel-sugar-holes-brushing-and-the-dentist/e1/) [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/) / [Teeth: enamel, sugar, holes, brushing…](https://md.mova.elamur.ai/free/en/corpora/questions/biology/352-teeth-enamel-sugar-holes-brushing-and-the-dentist/) / e1 # Exam question 1 · Teeth: enamel, sugar, holes, brushing and the dentist Identify the principal origin of the acid responsible for the decay of dental enamel. **Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** you, dental enamel · **What happens:** identify, decay · **To what, where:** principal origin This is exam question 1 of lesson 352 «Teeth: enamel, sugar, holes, brushing and the dentist» of the biology course of Mova's primary school, asked in stiff, formal language. 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/352-teeth-enamel-sugar-holes-brushing-and-the-dentist/#e1). ## The question {#question} ```conllu # sent_id = question:biology:352-teeth-enamel-sugar-holes-brushing-and-the-dentist:e1:1 # text = Identify the principal origin of the acid responsible for the decay of dental enamel. 1 Identify identify VERB VB Mood=Imp|VerbForm=Fin 0 root _ _ 2 the the DET DT Definite=Def|PronType=Art 4 det _ _ 3 principal principal ADJ JJ Degree=Pos 4 amod _ _ 4 origin origin NOUN NN Number=Sing 1 obj _ _ 5 of of ADP IN _ 7 case _ _ 6 the the DET DT Definite=Def|PronType=Art 7 det _ _ 7 acid acid NOUN NN Number=Sing 4 nmod _ _ 8 responsible responsible ADJ JJ Degree=Pos 7 amod _ _ 9 for for ADP IN _ 11 case _ _ 10 the the DET DT Definite=Def|PronType=Art 11 det _ _ 11 decay decay NOUN NN Number=Sing 8 obl _ _ 12 of of ADP IN _ 14 case _ _ 13 dental dental ADJ JJ Degree=Pos 14 amod _ _ 14 enamel enamel NOUN NN Number=Sing 11 nmod _ SpaceAfter=No 15 . . PUNCT . _ 1 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **identify** | imperative | you *not said here* | the principal origin of the acid | | | | | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent origin=Theme | | 2 | **decay** | | dental enamel | | | | | | nom decay «process intransitive»: of=agent | 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} Cold air inhaled through the mouth ```conllu # sent_id = question:biology:352-teeth-enamel-sugar-holes-brushing-and-the-dentist:e1:o1:1 # text = Cold air inhaled through the mouth 1 Cold cold ADJ JJ Degree=Pos 2 amod _ _ 2 air air NOUN NN Number=Sing 0 root _ _ 3 inhaled inhale VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 2 acl _ _ 4 through through ADP IN _ 6 case _ _ 5 the the DET DT Definite=Def|PronType=Art 6 det _ _ 6 mouth mouth NOUN NN Number=Sing 3 obl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **inhale** | participle | | Cold air *not said here* | | the mouth | | | vn exhale-40.1.3-2 «NP V»: agent=Agent | ### Option 2 {#o2} Saliva, which is acidic in all circumstances ```conllu # sent_id = question:biology:352-teeth-enamel-sugar-holes-brushing-and-the-dentist:e1:o2:1 # text = Saliva, which is acidic in all circumstances 1 Saliva saliva NOUN NN Number=Sing 0 root _ SpaceAfter=No 2 , , PUNCT , _ 5 punct _ _ 3 which which PRON WDT PronType=Rel 5 nsubj _ _ 4 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 5 cop _ _ 5 acidic acidic ADJ JJ Degree=Pos 1 acl:relcl _ _ 6 in in ADP IN _ 8 case _ _ 7 all all DET DT PronType=Tot 8 det _ _ 8 circumstances circumstance NOUN NNS Number=Plur 5 obl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is** | present | Saliva | | | all circumstances | | acidic *property* | tree rules | ### Option 3 {#o3} Sugar, which dissolves spontaneously into acid ```conllu # sent_id = question:biology:352-teeth-enamel-sugar-holes-brushing-and-the-dentist:e1:o3:1 # text = Sugar, which dissolves spontaneously into acid 1 Sugar sugar NOUN NN Number=Sing 4 nsubj _ SpaceAfter=No 2 , , PUNCT , _ 4 punct _ _ 3 which which PRON WDT PronType=Rel 4 nsubj _ _ 4 dissolves dissolve VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 5 spontaneously spontaneously ADV RB _ 4 advmod _ _ 6 into into ADP IN _ 7 case _ _ 7 acid acid NOUN NN Number=Sing 4 obl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **dissolve** | present | Sugar | | | | | into acid *result*; spontaneously *property* | vn break-45.1 «NP V PP.result»: agent=Patient into acid=Result | ### Option 4 · ✓ the right answer {#o4} Bacteria within dental plaque, which metabolise sugar ```conllu # sent_id = question:biology:352-teeth-enamel-sugar-holes-brushing-and-the-dentist:e1:o4:1 # text = Bacteria within dental plaque, which metabolise sugar 1 Bacteria bacterium NOUN NNS Number=Plur 7 nsubj _ _ 2 within within ADP IN _ 4 case _ _ 3 dental dental ADJ JJ Degree=Pos 4 amod _ _ 4 plaque plaque NOUN NN Number=Sing 1 nmod _ SpaceAfter=No 5 , , PUNCT , _ 7 punct _ _ 6 which which PRON WDT PronType=Rel 7 nsubj _ _ 7 metabolise metabolise VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 8 sugar sugar NOUN NN Number=Sing 7 obj _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **metabolise** | present | Bacteria within dental plaque | sugar | | | | | tree rules | **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: [Teeth: enamel, sugar, holes, brushing…, test 11](https://md.mova.elamur.ai/free/en/corpora/questions/biology/352-teeth-enamel-sugar-holes-brushing-and-the-dentist/t11/) - next →: [Teeth: enamel, sugar, holes, brushing…, exam 2](https://md.mova.elamur.ai/free/en/corpora/questions/biology/352-teeth-enamel-sugar-holes-brushing-and-the-dentist/e2/) - ↑ back to [Teeth: enamel, sugar, holes, brushing and the dentist](https://md.mova.elamur.ai/free/en/corpora/questions/biology/352-teeth-enamel-sugar-holes-brushing-and-the-dentist/)