---
title: Coal formed mostly from swamp forests of the Carboniferous period, a… — Coal, oil and gas · tree and pragmatics
description: Coal formed mostly from swamp forests of the Carboniferous period, about 360-300 million years ago. Who acts: Coal. A sentence of the lesson «Coal, oil and gas» of the geography course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Coal, oil and gas, sentence 9

<!-- .ven lang=en -->
Coal formed mostly from swamp forests of the Carboniferous period, about 360-300 million years ago.

<!-- .vintro -->
**Who acts:** Coal · **What happens:** form · **To what, where:** swamp forests

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This is a sentence of the lesson «Coal, oil and gas» of the geography course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (Coal), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:geography:059-coal-oil-and-gas.lesson:9
# text = Coal formed mostly from swamp forests of the Carboniferous period, about 360-300 million years ago.
# source = school lesson (ours)
# course = geography
# lesson = 059-coal-oil-and-gas.lesson
# annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R7-rel-agree ×2
1	Coal	coal	NOUN	NN	Number=Sing	2	nsubj	_	_
2	formed	form	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
3	mostly	mostly	ADV	RB	_	6	advmod	_	_
4	from	from	ADP	IN	_	6	case	_	_
5	swamp	swamp	NOUN	NN	Number=Sing	6	compound	_	Agree=R7-rel-agree|Haiku=6:amod|HaikuPos=ADJ:JJ:Degree=Pos
6	forests	forest	NOUN	NNS	Number=Plur	2	obl	_	_
7	of	of	ADP	IN	_	10	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
9	Carboniferous	Carboniferous	PROPN	NNP	Number=Sing	10	compound	_	_
10	period	period	NOUN	NN	Number=Sing	6	nmod	_	_
11	,	,	PUNCT	,	_	13	punct	_	_
12	about	about	ADV	RB	_	13	advmod	_	_
13	360-300	360-300	NUM	CD	NumForm=Digit|NumType=Card	14	compound	_	Agree=R7-rel-agree|Haiku=14:nummod
14	million	million	NUM	CD	NumForm=Word|NumType=Card	15	nummod	_	_
15	years	year	NOUN	NNS	Number=Plur	2	obl:unmarked	_	_
16	ago	ago	ADV	RB	_	15	advmod	_	_
17	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- sa -->
- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **form** | past | Coal |  |  | swamp forests of the Carboniferous period | year |  | vn appear-48.1.1 «NP V»: agent=Theme |

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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.

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**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:geography:059-coal-oil-and-gas.lesson:9`.

**The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R7-rel-agree ×2. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/).

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