---
title: Which fuel did not exist before the Carboniferous swamps? — Coal, oil and gas · tree and pragmatics
description: Which fuel did not exist before the Carboniferous swamps? Test 10 · ★ of lesson 59 «Coal, oil and gas» of the geography course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

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# Test 10 · ★ · Coal, oil and gas

<!-- .ven lang=en -->
Which fuel did not exist before the Carboniferous swamps?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** fuel · **What happens:** not exist · **To what, where:** Carboniferous swamps

<!-- .vabout -->
This is test 10 · ★ of lesson 59 «Coal, oil and gas» of the geography 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/geography/59-coal-oil-and-gas/#t10).

## The question {#question}

```conllu
# sent_id = question:geography:59-coal-oil-and-gas:t10:1
# text = Which fuel did not exist before the Carboniferous swamps?
1	Which	which	DET	WDT	PronType=Int	2	det	_	_
2	fuel	fuel	NOUN	NN	Number=Sing	5	nsubj	_	_
3	did	do	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	5	aux	_	_
4	not	not	PART	RB	Polarity=Neg	5	advmod	_	_
5	exist	exist	VERB	VB	VerbForm=Inf	0	root	_	_
6	before	before	ADP	IN	_	9	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
8	Carboniferous	Carboniferous	PROPN	NNP	Number=Sing	9	compound	_	_
9	swamps	swamp	NOUN	NNS	Number=Plur	5	obl	_	SpaceAfter=No
10	?	?	PUNCT	.	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **exist** | past · do-support | which fuel |  |  | the Carboniferous swamps |  |  | vn exist-47.1 «NP V PP.location»: agent=Theme before swamp=Location |

<!-- .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 -->
Most of the world's coal

```conllu
# sent_id = question:geography:59-coal-oil-and-gas:t10:o1:1
# text = Most of the world's coal
1	Most	most	ADJ	JJS	Degree=Sup	0	root	_	_
2	of	of	ADP	IN	_	6	case	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	world	world	NOUN	NN	Number=Sing	6	nmod:poss	_	SpaceAfter=No
5	's	's	PART	POS	_	4	case	_	_
6	coal	coal	NOUN	NN	Number=Sing	1	nmod	_	_
```

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

### Option 2 {#o2}

<!-- .ven lang=en -->
Running water

```conllu
# sent_id = question:geography:59-coal-oil-and-gas:t10:o2:1
# text = Running water
1	Running	run	VERB	VBG	VerbForm=Ger	2	amod	_	_
2	water	water	NOUN	NN	Number=Sing	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **run** | gerund |  |  |  |  |  |  | vn run-51.3.2-2-1 «NP V»: agent=Theme |

### Option 3 {#o3}

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

```conllu
# sent_id = question:geography:59-coal-oil-and-gas:t10:o3:1
# text = Sunlight
1	Sunlight	sunlight	NOUN	NN	Number=Sing	0	root	_	_
```

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

### Option 4 {#o4}

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

```conllu
# sent_id = question:geography:59-coal-oil-and-gas:t10:o4:1
# text = Wind
1	Wind	wind	NOUN	NN	Number=Sing	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: [Coal, oil and gas, test 9](https://md.mova.elamur.ai/free/en/corpora/questions/geography/59-coal-oil-and-gas/t9/)
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