---
title: Which of the following statements most accurately characterises the… — Colours of fire: fireworks · tree and pragmatics
description: Which of the following statements most accurately characterises the luminescence of a bent glow stick? Exam question 3 of lesson 26 «Colours of fire: fireworks» 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
---

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# Exam question 3 · Colours of fire: fireworks

<!-- .ven lang=en -->
Which of the following statements most accurately characterises the luminescence of a bent glow stick?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** bent glow stick · **What happens:** follow, characteris, luminesce · **To what, where:** luminescence

<!-- .vabout -->
This is exam question 3 of lesson 26 «Colours of fire: fireworks» of the chemistry 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/chemistry/26-colours-of-fire-fireworks/#e3).

## The question {#question}

```conllu
# sent_id = question:chemistry:26-colours-of-fire-fireworks:e3:1
# text = Which of the following statements most accurately characterises the luminescence of a bent glow stick?
1	Which	which	PRON	WDT	PronType=Rel	8	nsubj	_	_
2	of	of	ADP	IN	_	5	case	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	following	follow	VERB	VBG	VerbForm=Ger	5	amod	_	_
5	statements	statement	NOUN	NNS	Number=Plur	8	obl	_	_
6	most	most	ADV	RBS	Degree=Sup	7	advmod	_	_
7	accurately	accurately	ADV	RB	_	8	advmod	_	_
8	characterises	characteris	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	luminescence	luminescence	NOUN	NN	Number=Sing	8	obj	_	_
11	of	of	ADP	IN	_	15	case	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	15	det	_	_
13	bent	bent	ADJ	JJ	Degree=Pos	15	amod	_	_
14	glow	glow	NOUN	NN	Number=Sing	15	compound	_	_
15	stick	stick	NOUN	NN	Number=Sing	10	nmod	_	SpaceAfter=No
16	?	?	PUNCT	.	_	8	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **follow** | gerund |  |  |  |  |  |  | vn occur-48.3-1 «NP V»: agent=Theme |
| 2 | **characteris** | present |  | the luminescence of a bent glow stick |  |  |  | of the following statements; accurately *property* | tree rules |
| 3 | **luminesce** |  | a bent glow stick |  |  |  |  |  | nom luminescence «phenomenon intransitive»: of=agent |

<!-- .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 · ✓ the right answer {#o1}

<!-- .ven lang=en -->
Two chemicals react and emit light with negligible heat

```conllu
# sent_id = question:chemistry:26-colours-of-fire-fireworks:e3:o1:1
# text = Two chemicals react and emit light with negligible heat
1	Two	two	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	chemicals	chemical	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	react	react	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	and	and	CCONJ	CC	_	5	cc	_	_
5	emit	emit	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	conj	_	_
6	light	light	NOUN	NN	Number=Sing	5	obj	_	_
7	with	with	ADP	IN	_	9	case	_	_
8	negligible	negligible	ADJ	JJ	Degree=Pos	9	amod	_	_
9	heat	heat	NOUN	NN	Number=Sing	5	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **react** | present | Two chemicals |  |  |  |  |  | vn respond-113 «NP V»: agent=Agent |
| 2 | **emit** | present | Two chemicals *not said here* | light |  |  |  | with negligible heat | vn substance\_emission-43.4 «NP V NP»: agent=Source light=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
Stored sunlight is released upon bending

```conllu
# sent_id = question:chemistry:26-colours-of-fire-fireworks:e3:o2:1
# text = Stored sunlight is released upon bending
1	Stored	store	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	2	amod	_	_
2	sunlight	sunlight	NOUN	NN	Number=Sing	4	nsubj:pass	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
4	released	release	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	upon	upon	ADP	IN	_	6	case	_	_
6	bending	bending	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **store** | participle |  |  |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent |
| 2 | **release** | present · passive |  | Stored sunlight |  |  |  | upon bending | vn free-10.6.3-1 «NP V NP S\_ING»: subject=Source |

### Option 3 {#o3}

<!-- .ven lang=en -->
Combustion occurs within the sealed tube

```conllu
# sent_id = question:chemistry:26-colours-of-fire-fireworks:e3:o3:1
# text = Combustion occurs within the sealed tube
1	Combustion	combustion	NOUN	NN	Number=Sing	2	nsubj	_	_
2	occurs	occur	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	within	within	ADP	IN	_	6	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
5	sealed	seal	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	6	amod	_	_
6	tube	tube	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **occur** | present | Combustion |  |  |  |  | within the sealed tube | vn occur-48.3-1 «NP V»: agent=Theme |
| 2 | **seal** | participle |  |  |  |  |  |  | vn tape-22.4 «NP V ADV-Middle»: agent=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
A concealed electrical cell illuminates a filament

```conllu
# sent_id = question:chemistry:26-colours-of-fire-fireworks:e3:o4:1
# text = A concealed electrical cell illuminates a filament
1	A	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
2	concealed	conceal	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	amod	_	_
3	electrical	electrical	ADJ	JJ	Degree=Pos	4	amod	_	_
4	cell	cell	NOUN	NN	Number=Sing	5	nsubj	_	_
5	illuminates	illuminate	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
7	filament	filament	NOUN	NN	Number=Sing	5	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **conceal** | participle |  |  |  |  |  |  | vn concealment-16 «NP V NP»: agent=Agent |
| 2 | **illuminate** | present | a concealed electrical cell | a filament |  |  |  |  | vn illustrate-25.3 «NP V NP»: agent=Agent filament=Destination |

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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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- ← previous: [Colours of fire: fireworks, exam 2](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/26-colours-of-fire-fireworks/e2/)
- next →: [Colours of fire: fireworks, exam 4](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/26-colours-of-fire-fireworks/e4/)
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