---
title: A struck match gives a sharp smell. Where does it come from? — Molecules: when atoms join up · tree and pragmatics
description: A struck match gives a sharp smell. Where does it come from? Test 8 · ★ of lesson 3 «Molecules: when atoms join up» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/chemistry/3-molecules-when-atoms-join-up/t8/)

<!-- crumbs -->
[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/) / [Chemistry](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/) / [Molecules: when atoms join up](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/3-molecules-when-atoms-join-up/) / t8

# Test 8 · ★ · Molecules: when atoms join up

<!-- .ven lang=en -->
A struck match gives a sharp smell. Where does it come from?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** struck match, match · **What happens:** strike, give, come · **To what, where:** sharp smell

<!-- .vabout -->
This is test 8 · ★ of lesson 3 «Molecules: when atoms join up» of the chemistry 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/chemistry/3-molecules-when-atoms-join-up/#t8).

## The question {#question}

<!-- .note -->
*Sentence 1:* A struck match gives a sharp smell.

```conllu
# sent_id = question:chemistry:3-molecules-when-atoms-join-up:t8:1
# text = A struck match gives a sharp smell.
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	struck	strike	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	amod	_	_
3	match	match	NOUN	NN	Number=Sing	4	nsubj	_	_
4	gives	give	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
6	sharp	sharp	ADJ	JJ	Degree=Pos	7	amod	_	_
7	smell	smell	NOUN	NN	Number=Sing	4	obj	_	SpaceAfter=No
8	.	.	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **strike** | participle |  |  |  |  |  |  | vn sound\_emission-43.2 «NP V»: agent=Theme |
| 2 | **give** | present | a struck match | a sharp smell |  |  |  |  | vn give-13.1-1 «NP V NP»: agent=Agent smell=Theme |

<!-- .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.

<!-- .note -->
*Sentence 2:* Where does it come from?

```conllu
# sent_id = question:chemistry:3-molecules-when-atoms-join-up:t8:2
# text = Where does it come from?
1	Where	where	ADV	WRB	PronType=Rel	4	advmod	_	_
2	does	do	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux	_	_
3	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	nsubj	_	_
4	come	come	VERB	VB	VerbForm=Inf	0	root	_	_
5	from	from	ADP	IN	_	4	obl	_	SpaceAfter=No
6	?	?	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **come** | present · do-support | match |  |  |  |  |  | vn escape-51.1-1 «NP V»: agent=Theme |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
The wood was always smelly inside, and the flame just lets it out

```conllu
# sent_id = question:chemistry:3-molecules-when-atoms-join-up:t8:o1:1
# text = The wood was always smelly inside, and the flame just lets it out
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	wood	wood	NOUN	NN	Number=Sing	5	nsubj	_	_
3	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	5	cop	_	_
4	always	always	ADV	RB	PronType=Tot	5	advmod	_	_
5	smelly	smelly	ADJ	JJ	Degree=Pos	0	root	_	_
6	inside	inside	ADV	RB	_	5	advmod	_	SpaceAfter=No
7	,	,	PUNCT	,	_	12	punct	_	_
8	and	and	CCONJ	CC	_	12	cc	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	flame	flame	NOUN	NN	Number=Sing	12	nsubj	_	_
11	just	just	ADV	RB	_	12	advmod	_	_
12	lets	let	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	parataxis	_	_
13	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	12	obj	_	_
14	out	out	ADP	RP	_	12	compound:prt	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | past | the wood |  |  |  |  | always, inside, smelly *property* | tree rules |
| 2 | **let out** | present | the flame | wood |  |  |  |  | vn give-13.1-1 «NP V NP»: agent=Agent it=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
Your nose gets scratched by the flame

```conllu
# sent_id = question:chemistry:3-molecules-when-atoms-join-up:t8:o2:1
# text = Your nose gets scratched by the flame
1	Your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	2	nmod:poss	_	_
2	nose	nose	NOUN	NN	Number=Sing	4	nsubj:pass	_	_
3	gets	get	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
4	scratched	scratch	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	by	by	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	flame	flame	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **scratch** | present · passive | the flame | Your nose |  |  |  |  | vn scribble-25.2-1 «NP V NP»: agent=Agent subject=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
Smoke is the only thing with no molecules

```conllu
# sent_id = question:chemistry:3-molecules-when-atoms-join-up:t8:o3:1
# text = Smoke is the only thing with no molecules
1	Smoke	smoke	NOUN	NN	Number=Sing	5	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	only	only	ADJ	JJ	Degree=Pos	5	amod	_	_
5	thing	thing	NOUN	NN	Number=Sing	0	root	_	_
6	with	with	ADP	IN	_	8	case	_	_
7	no	no	DET	DT	PronType=Neg	8	det	_	_
8	molecules	molecule	NOUN	NNS	Number=Plur	5	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | Smoke | the only thing |  |  |  | with no molecules | tree rules |

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

<!-- .ven lang=en -->
New gas molecules made by the burning, which your nose senses

```conllu
# sent_id = question:chemistry:3-molecules-when-atoms-join-up:t8:o4:1
# text = New gas molecules made by the burning, which your nose senses
1	New	new	ADJ	JJ	Degree=Pos	3	amod	_	_
2	gas	gas	NOUN	NN	Number=Sing	3	compound	_	_
3	molecules	molecule	NOUN	NNS	Number=Plur	12	nsubj	_	_
4	made	make	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	acl	_	_
5	by	by	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	burning	burning	NOUN	NN	Number=Sing	4	obl	_	SpaceAfter=No
8	,	,	PUNCT	,	_	12	punct	_	_
9	which	which	PRON	WDT	PronType=Rel	12	obj	_	_
10	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	11	nmod:poss	_	_
11	nose	nose	NOUN	NN	Number=Sing	12	nsubj	_	_
12	senses	sense	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | participle |  | New gas molecules *not said here* |  |  |  | by the burning | vn build-26.1-1 «NP.asset V NP»: agent=Asset |
| 2 | **sense** | present | New gas molecules |  |  |  |  |  | vn see-30.1-1 «NP V S»: agent=Experiencer which=Stimulus |

<!-- div src -->

**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 -->

<!-- pn -->
- ← previous: [Molecules: when atoms join up, test 7](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/3-molecules-when-atoms-join-up/t7/)
- next →: [Molecules: when atoms join up, test 9](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/3-molecules-when-atoms-join-up/t9/)
- ↑ back to [Molecules: when atoms join up](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/3-molecules-when-atoms-join-up/)