--- title: Ascertain the approximate interval at which a toothbrush ought to be… — Brushing your teeth · tree and pragmatics description: Ascertain the approximate interval at which a toothbrush ought to be replaced. Exam question 4 of lesson 73 «Brushing your teeth» of the everyday 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/everyday/73-brushing-your-teeth/e4/) [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/) / [Everyday](https://md.mova.elamur.ai/free/en/corpora/questions/everyday/) / [Brushing your teeth](https://md.mova.elamur.ai/free/en/corpora/questions/everyday/73-brushing-your-teeth/) / e4 # Exam question 4 · Brushing your teeth Ascertain the approximate interval at which a toothbrush ought to be replaced. **Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** you · **What happens:** ascertain, replace · **To what, where:** approximate interval, toothbrush This is exam question 4 of lesson 73 «Brushing your teeth» of the everyday 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/everyday/73-brushing-your-teeth/#e4). ## The question {#question} ```conllu # sent_id = question:everyday:73-brushing-your-teeth:e4:1 # text = Ascertain the approximate interval at which a toothbrush ought to be replaced. 1 Ascertain ascertain VERB VB Mood=Imp|VerbForm=Fin 0 root _ _ 2 the the DET DT Definite=Def|PronType=Art 4 det _ _ 3 approximate approximate ADJ JJ Degree=Pos 4 amod _ _ 4 interval interval NOUN NN Number=Sing 1 obj _ _ 5 at at ADP IN _ 6 case _ _ 6 which which PRON WDT PronType=Rel 12 obl _ _ 7 a a DET DT Definite=Ind|PronType=Art 8 det _ _ 8 toothbrush toothbrush NOUN NN Number=Sing 12 nsubj:pass _ _ 9 ought ought AUX MD VerbForm=Fin 12 aux _ _ 10 to to PART TO _ 12 mark _ _ 11 be be AUX VB VerbForm=Inf 12 aux:pass _ _ 12 replaced replace VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 4 acl:relcl _ SpaceAfter=No 13 . . PUNCT . _ 1 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **ascertain** | imperative | you *not said here* | the approximate interval | | | | | vn discover-84 «NP V NP»: agent=Agent interval=Topic | | 2 | **replace** | ought · passive | you *not said here* | a toothbrush | | the approximate interval | | | vn substitute-13.6.2-1 «NP V NP»: subject=Co-Theme | 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 · ✓ the right answer {#o1} Approximately every three months ```conllu # sent_id = question:everyday:73-brushing-your-teeth:e4:o1:1 # text = Approximately every three months 1 Approximately approximately ADV RB _ 4 advmod _ _ 2 every every DET DT PronType=Tot 4 det _ _ 3 three three NUM CD NumForm=Word|NumType=Card 4 nummod _ _ 4 months month NOUN NNS Number=Plur 0 root _ _ ``` The frames reader finds no event or fact in this sentence. ### Option 2 {#o2} Approximately every three years ```conllu # sent_id = question:everyday:73-brushing-your-teeth:e4:o2:1 # text = Approximately every three years 1 Approximately approximately ADV RB _ 4 advmod _ _ 2 every every DET DT PronType=Tot 4 det _ _ 3 three three NUM CD NumForm=Word|NumType=Card 4 nummod _ _ 4 years year NOUN NNS Number=Plur 0 root _ _ ``` The frames reader finds no event or fact in this sentence. ### Option 3 {#o3} Approximately every three days ```conllu # sent_id = question:everyday:73-brushing-your-teeth:e4:o3:1 # text = Approximately every three days 1 Approximately approximately ADV RB _ 4 advmod _ _ 2 every every DET DT PronType=Tot 4 det _ _ 3 three three NUM CD NumForm=Word|NumType=Card 4 nummod _ _ 4 days day NOUN NNS Number=Plur 0 root _ _ ``` The frames reader finds no event or fact in this sentence. ### Option 4 {#o4} Only when the handle breaks ```conllu # sent_id = question:everyday:73-brushing-your-teeth:e4:o4:1 # text = Only when the handle breaks 1 Only only ADV RB _ 5 advmod _ _ 2 when when ADV WRB PronType=Int 5 advmod _ _ 3 the the DET DT Definite=Def|PronType=Art 4 det _ _ 4 handle handle NOUN NN Number=Sing 5 nsubj _ _ 5 breaks break VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **break** | present | the handle | | | | | | vn hurt-40.8.3-1-1 «NP V»: agent=Patient | **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: [Brushing your teeth, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/everyday/73-brushing-your-teeth/e3/) - next →: [Flossing and caring for your teeth, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/everyday/74-flossing-and-caring-for-teeth/t1/) - ↑ back to [Brushing your teeth](https://md.mova.elamur.ai/free/en/corpora/questions/everyday/73-brushing-your-teeth/)