---
title: Why do doctors keep watching a medicine even after it's on sale? — How medicines work · tree and pragmatics
description: Why do doctors keep watching a medicine even after it's on sale? Test 10 · ★ of lesson 17 «How medicines work» of the medicine course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Test 10 · ★ · How medicines work

<!-- .ven lang=en -->
Why do doctors keep watching a medicine even after it's on sale?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** doctors, medicine · **What happens:** keep, watch, be · **To what, where:** medicine

<!-- .vabout -->
This is test 10 · ★ of lesson 17 «How medicines work» of the medicine 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/medicine/17-how-medicines-work/#t10).

## The question {#question}

```conllu
# sent_id = question:medicine:17-how-medicines-work:t10:1
# text = Why do doctors keep watching a medicine even after it's on sale?
1	Why	why	ADV	WRB	PronType=Int	4	advmod	_	_
2	do	do	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	aux	_	_
3	doctors	doctor	NOUN	NNS	Number=Plur	4	nsubj	_	_
4	keep	keep	VERB	VB	VerbForm=Inf	0	root	_	_
5	watching	watch	VERB	VBG	VerbForm=Ger	4	xcomp	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
7	medicine	medicine	NOUN	NN	Number=Sing	5	obj	_	_
8	even	even	ADV	RB	_	13	advmod	_	_
9	after	after	ADP	IN	_	13	case	_	_
10	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	13	nsubj	_	SpaceAfter=No
11	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	13	cop	_	_
12	on	on	ADP	IN	_	13	case	_	_
13	sale	sale	NOUN	NN	Number=Sing	5	obl	_	SpaceAfter=No
14	?	?	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | present · do-support | doctors |  |  |  |  |  | tree rules |
| 2 | **watch** | gerund | doctors *not said here* | a medicine |  |  |  |  | vn assessment-34.1 «NP V NP»: agent=Agent medicine=Theme |
| 3 | **is** | present | medicine |  |  |  | after sale |  | tree rules |

<!-- .note -->
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}

<!-- .ven lang=en -->
To count the money

```conllu
# sent_id = question:medicine:17-how-medicines-work:t10:o1:1
# text = To count the money
1	To	to	PART	TO	_	2	mark	_	_
2	count	count	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	money	money	NOUN	NN	Number=Sing	2	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **count** | to-infinitive |  | the money |  |  |  |  | vn multiply-108 «NP V NP»: agent=Agent money=Theme |

### Option 2 · ✓ the right answer {#o2}

<!-- .ven lang=en -->
Rare side effects can show up in many users

```conllu
# sent_id = question:medicine:17-how-medicines-work:t10:o2:1
# text = Rare side effects can show up in many users
1	Rare	rare	ADJ	JJ	Degree=Pos	3	amod	_	_
2	side	side	NOUN	NN	Number=Sing	3	compound	_	_
3	effects	effect	NOUN	NNS	Number=Plur	5	nsubj	_	_
4	can	can	AUX	MD	VerbForm=Fin	5	aux	_	_
5	show	show	VERB	VB	VerbForm=Inf	0	root	_	_
6	up	up	ADP	RP	_	5	compound:prt	_	_
7	in	in	ADP	IN	_	9	case	_	_
8	many	many	ADJ	JJ	Degree=Pos	9	amod	_	_
9	users	user	NOUN	NNS	Number=Plur	5	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **show up** | can | Rare side effects |  |  | many users |  |  | vn appear-48.1.1 «NP V PP.location»: agent=Theme in user=Location |

### Option 3 {#o3}

<!-- .ven lang=en -->
To change its colour

```conllu
# sent_id = question:medicine:17-how-medicines-work:t10:o3:1
# text = To change its colour
1	To	to	PART	TO	_	2	mark	_	_
2	change	change	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	4	nmod:poss	_	_
4	colour	colour	NOUN	NN	Number=Sing	2	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **change** | to-infinitive |  | its colour |  |  |  |  | vn dress-41.1.1-1-1 «NP V NP»: agent=Agent colour=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
They don't, they stop watching once it's in the shops

```conllu
# sent_id = question:medicine:17-how-medicines-work:t10:o4:1
# text = They don't, they stop watching once it's in the shops
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	_	_
2	do	do	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	SpaceAfter=No
3	n't	not	PART	RB	Polarity=Neg	2	advmod	_	SpaceAfter=No
4	,	,	PUNCT	,	_	6	punct	_	_
5	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	6	nsubj	_	_
6	stop	stop	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
7	watching	watch	VERB	VBG	VerbForm=Ger	6	xcomp	_	_
8	once	once	SCONJ	IN	_	13	mark	_	_
9	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	13	nsubj	_	SpaceAfter=No
10	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	13	cop	_	_
11	in	in	ADP	IN	_	13	case	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	shops	shop	NOUN	NNS	Number=Plur	7	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **do** | present | They |  |  |  |  |  | vn act-114-1 «NP V»: agent=Agent |
| 2 | **stop** | present | they |  |  |  |  |  | vn stop-55.4-1-1 «NP V S\_ING»: agent=Affector clause=Eventuality |
| 3 | **watch** | gerund | they *not said here* |  |  |  |  |  | vn search-35.2 «NP V PP.location»: agent=Agent |
| 4 | **is** | present | it |  |  | the shops |  |  | tree rules |

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**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.

<!-- /div -->

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