---
title: Why is there no single vaccine that stops all colds? — The microscopic world: viruses and vac… · tree and pragmatics
description: Why is there no single vaccine that stops all colds? Test 8 of lesson 258 «The microscopic world: viruses and vaccines» 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.
---

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# Test 8 · The microscopic world: viruses and vaccines

<!-- .ven lang=en -->
Why is there no single vaccine that stops all colds?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 4 · wrong ✗ · **Who acts:** single vaccine · **What happens:** be, stop · **To what, where:** colds

<!-- .vabout -->
This is test 8 of lesson 258 «The microscopic world: viruses and vaccines» 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/258-the-microscopic-world-viruses-and-vaccines/#t8).

## The question {#question}

```conllu
# sent_id = question:biology:258-the-microscopic-world-viruses-and-vaccines:t8:1
# text = Why is there no single vaccine that stops all colds?
1	Why	why	ADV	WRB	PronType=Int	0	root	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	1	cop	_	_
3	there	there	PRON	EX	PronType=Dem	2	expl	_	_
4	no	no	DET	DT	PronType=Neg	6	det	_	_
5	single	single	ADJ	JJ	Degree=Pos	6	amod	_	_
6	vaccine	vaccine	NOUN	NN	Number=Sing	2	nsubj	_	_
7	that	that	PRON	WDT	PronType=Rel	8	nsubj	_	_
8	stops	stop	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	acl:relcl	_	_
9	all	all	DET	DT	PronType=Tot	10	det	_	_
10	colds	cold	NOUN	NNS	Number=Plur	8	obj	_	SpaceAfter=No
11	?	?	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present |  |  |  |  |  | why *property* | tree rules |
| 2 | **stop** | present | no single vaccine | all colds |  |  |  |  | vn stop-55.4-1-1 «NP V NP.eventuality»: agent=Subeventuality cold=Eventuality |

<!-- .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 {#o1}

<!-- .ven lang=en -->
Colds are too small to vaccinate against

```conllu
# sent_id = question:biology:258-the-microscopic-world-viruses-and-vaccines:t8:o1:1
# text = Colds are too small to vaccinate against
1	Colds	cold	NOUN	NNS	Number=Plur	4	nsubj	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
3	too	too	ADV	RB	_	4	advmod	_	_
4	small	small	ADJ	JJ	Degree=Pos	0	root	_	_
5	to	to	PART	TO	_	6	mark	_	_
6	vaccinate	vaccinate	VERB	VB	VerbForm=Inf	4	advcl	_	_
7	against	against	ADP	IN	_	6	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | Colds |  |  |  |  | small *property* | tree rules |
| 2 | **vaccinate** | to-infinitive | Colds *not said here* |  |  |  |  |  | tree rules |

### Option 2 {#o2}

<!-- .ven lang=en -->
Vaccines only work on animals

```conllu
# sent_id = question:biology:258-the-microscopic-world-viruses-and-vaccines:t8:o2:1
# text = Vaccines only work on animals
1	Vaccines	vaccine	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	only	only	ADV	RB	_	3	advmod	_	_
3	work	work	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	on	on	ADP	IN	_	5	case	_	_
5	animals	animal	NOUN	NNS	Number=Plur	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **work** | present | Vaccines |  |  |  |  | on animals | vn employment-95.3 «NP V PP.theme»: agent=Agent on animal=Theme |

### Option 3 · ← Mova's choice {#o3}

<!-- .ven lang=en -->
Colds are not caused by germs

```conllu
# sent_id = question:biology:258-the-microscopic-world-viruses-and-vaccines:t8:o3:1
# text = Colds are not caused by germs
1	Colds	cold	NOUN	NNS	Number=Plur	4	nsubj	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
3	not	not	PART	RB	Polarity=Neg	4	advmod	_	_
4	caused	cause	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	by	by	ADP	IN	_	6	case	_	_
6	germs	germ	NOUN	NNS	Number=Plur	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **cause** | present · passive | germs | Colds |  |  |  |  | vn engender-27.1-1 «NP V NP»: agent=Precondition subject=Patient |

### Option 4 · ✓ the right answer {#o4}

<!-- .ven lang=en -->
There are over 200 different cold viruses

```conllu
# sent_id = question:biology:258-the-microscopic-world-viruses-and-vaccines:t8:o4:1
# text = There are over 200 different cold viruses
1	There	there	PRON	EX	PronType=Dem	2	expl	_	_
2	are	be	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	over	over	ADV	RB	_	4	advmod	_	_
4	200	200	NUM	CD	NumForm=Digit|NumType=Card	7	nummod	_	_
5	different	different	ADJ	JJ	Degree=Pos	7	amod	_	_
6	cold	cold	ADJ	JJ	Degree=Pos	7	amod	_	_
7	viruses	virus	NOUN	NNS	Number=Plur	2	nsubj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **does** | present | 200 different cold viruses |  |  | there |  |  | vn exist-47.1 «NP V»: agent=Theme |

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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.

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