---
title: Identify the substances that are effective against bacteria but not… — Germs, hygiene and vaccines · tree and pragmatics
description: Identify the substances that are effective against bacteria but not against viruses. Exam question 2 of lesson 37 «Germs, hygiene and vaccines» of the world 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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# Exam question 2 · Germs, hygiene and vaccines

<!-- .ven lang=en -->
Identify the substances that are effective against bacteria but not against viruses.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** you, substances · **What happens:** identify, be · **To what, where:** substances

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This is exam question 2 of lesson 37 «Germs, hygiene and vaccines» of the world 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/world/37-germs-hygiene-vaccines/#e2).

## The question {#question}

```conllu
# sent_id = question:world:37-germs-hygiene-vaccines:e2:1
# text = Identify the substances that are effective against bacteria but not against viruses.
1	Identify	identify	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	substances	substance	NOUN	NNS	Number=Plur	1	obj	_	_
4	that	that	PRON	WDT	PronType=Rel	6	nsubj	_	_
5	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
6	effective	effective	ADJ	JJ	Degree=Pos	3	acl:relcl	_	_
7	against	against	ADP	IN	_	8	case	_	_
8	bacteria	bacterium	NOUN	NNS	Number=Plur	6	obl	_	_
9	but	but	CCONJ	CC	_	12	cc	_	_
10	not	not	PART	RB	Polarity=Neg	12	advmod	_	_
11	against	against	ADP	IN	_	12	case	_	_
12	viruses	virus	NOUN	NNS	Number=Plur	8	conj	_	SpaceAfter=No
13	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **identify** | imperative | you *not said here* | the substances |  |  |  |  | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent substance=Theme |
| 2 | **is** | present | the substances |  |  |  |  | against bacteria but viruses; effective *property* | 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 -->
Vitamins

```conllu
# sent_id = question:world:37-germs-hygiene-vaccines:e2:o1:1
# text = Vitamins
1	Vitamins	vitamin	NOUN	NNS	Number=Plur	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 2 {#o2}

<!-- .ven lang=en -->
Soap and water alone

```conllu
# sent_id = question:world:37-germs-hygiene-vaccines:e2:o2:1
# text = Soap and water alone
1	Soap	soap	NOUN	NN	Number=Sing	0	root	_	_
2	and	and	CCONJ	CC	_	3	cc	_	_
3	water	water	NOUN	NN	Number=Sing	1	conj	_	_
4	alone	alone	ADV	RB	_	1	advmod	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 3 {#o3}

<!-- .ven lang=en -->
Vaccines

```conllu
# sent_id = question:world:37-germs-hygiene-vaccines:e2:o3:1
# text = Vaccines
1	Vaccines	vaccine	NOUN	NNS	Number=Plur	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

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

<!-- .ven lang=en -->
Antibiotics

```conllu
# sent_id = question:world:37-germs-hygiene-vaccines:e2:o4:1
# text = Antibiotics
1	Antibiotics	antibiotic	NOUN	NNS	Number=Plur	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

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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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- ← previous: [Germs, hygiene and vaccines, exam 1](https://md.mova.elamur.ai/free/en/corpora/questions/world/37-germs-hygiene-vaccines/e1/)
- next →: [Germs, hygiene and vaccines, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/world/37-germs-hygiene-vaccines/e3/)
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