---
title: On the dark sea floor there are cracks where water, heated by hot ro… — Vents and trenches: tubeworms, iron snails, the… · tree and pragmatics
description: On the dark sea floor there are cracks where water, heated by hot rock deep below, gushes out full of minerals, and when it meets the freezing sea the minerals turn into black smoke and build tall chimneys. Who acts: cracks, water, minerals. A sentence of the lesson «Vents and trenches: tubeworms, i
---

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# Vents and trenches: tubeworms, iron snails, the Challenger Deep and life without sunlight, sentence 0

<!-- .ven lang=en -->
On the dark sea floor there are cracks where water, heated by hot rock deep below, gushes out full of minerals, and when it meets the freezing sea the minerals turn into black smoke and build tall chimneys.

<!-- .vintro -->
**Who acts:** cracks, water, minerals · **What happens:** be, heat, gush, meet, freeze, turn · **To what, where:** dark sea floor, water, freezing sea, black smoke, tall chimneys

<!-- .vabout -->
This is a sentence of the lesson «Vents and trenches: tubeworms, iron snails, the Challenger Deep and life without sunlight» of the biology 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 (cracks, water, minerals), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:177-vents-and-trenches-tubeworms-iron-snails-the-challenger-deep-and-life-without-sunlight.lesson:0
# text = On the dark sea floor there are cracks where water, heated by hot rock deep below, gushes out full of minerals, and when it meets the freezing sea the minerals turn into black smoke and build tall chimneys.
# source = school lesson (ours)
# course = biology
# lesson = 177-vents-and-trenches-tubeworms-iron-snails-the-challenger-deep-and-life-without-sunlight.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): R6-punct-agree ×1, R7-rel-agree ×1
1	On	on	ADP	IN	_	5	case	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
3	dark	dark	ADJ	JJ	Degree=Pos	5	amod	_	_
4	sea	sea	NOUN	NN	Number=Sing	5	compound	_	_
5	floor	floor	NOUN	NN	Number=Sing	7	obl	_	_
6	there	there	PRON	EX	PronType=Dem	7	expl	_	_
7	are	be	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
8	cracks	crack	NOUN	NNS	Number=Plur	7	nsubj	_	_
9	where	where	ADV	WRB	PronType=Rel	19	advmod	_	_
10	water	water	NOUN	NN	Number=Sing	19	nsubj	_	_
11	,	,	PUNCT	,	_	12	punct	_	_
12	heated	heat	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	10	acl	_	_
13	by	by	ADP	IN	_	15	case	_	_
14	hot	hot	ADJ	JJ	Degree=Pos	15	amod	_	_
15	rock	rock	NOUN	NN	Number=Sing	12	obl	_	_
16	deep	deep	ADJ	JJ	Degree=Pos	12	conj	_	_
17	below	below	ADV	RB	_	16	advmod	_	_
18	,	,	PUNCT	,	_	19	punct	_	_
19	gushes	gush	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	acl:relcl	_	_
20	out	out	ADV	RB	_	21	advmod	_	_
21	full	full	ADJ	JJ	Degree=Pos	19	xcomp	_	_
22	of	of	ADP	IN	_	23	case	_	_
23	minerals	mineral	NOUN	NNS	Number=Plur	21	obl	_	_
24	,	,	PUNCT	,	_	28	punct	_	_
25	and	and	CCONJ	CC	_	28	cc	_	_
26	when	when	ADV	WRB	PronType=Int	28	advmod	_	_
27	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	28	nsubj	_	_
28	meets	meet	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	advcl	_	_
29	the	the	DET	DT	Definite=Def|PronType=Art	31	det	_	_
30	freezing	freeze	VERB	VBG	Tense=Pres|VerbForm=Part	31	amod	_	Agree=R7-rel-agree|Haiku=31:compound|HaikuPos=NOUN:NN:Number=Sing
31	sea	sea	NOUN	NN	Number=Sing	28	obj	_	_
32	the	the	DET	DT	Definite=Def|PronType=Art	33	det	_	_
33	minerals	mineral	NOUN	NNS	Number=Plur	34	nsubj	_	_
34	turn	turn	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	31	acl:relcl	_	_
35	into	into	ADP	IN	_	37	case	_	_
36	black	black	ADJ	JJ	Degree=Pos	37	amod	_	_
37	smoke	smoke	NOUN	NN	Number=Sing	34	obl	_	_
38	and	and	CCONJ	CC	_	39	cc	_	_
39	build	build	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	34	conj	_	_
40	tall	tall	ADJ	JJ	Degree=Pos	41	amod	_	_
41	chimneys	chimney	NOUN	NNS	Number=Plur	39	obj	_	_
42	.	.	PUNCT	.	_	7	punct	_	Agree=R6-punct-agree|Haiku=28: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 | **does** | present | cracks |  |  | the dark sea floor; there |  |  | vn exist-47.1 «NP V PP.location»: agent=Theme on floor=Location |
| 2 | **heat** | participle |  | water *not said here* |  |  |  | by hot rock | vn cooking-45.3 «NP.patient V»: agent=Patient |
| 3 | **gush** | present | water |  |  |  |  | full *property* | vn appear-48.1.1 «NP V»: agent=Theme |
| 4 | **meet** | present | water | the freezing sea |  |  |  |  | vn meet-36.3-1 «NP V NP»: agent=Agent sea=Co-Agent |
| 5 | **freeze** | gerund |  |  |  |  |  |  | vn other\_cos-45.4-1 «NP.patient V»: agent=Patient |
| 6 | **turn** | present | the minerals | the freezing sea *not said here* |  | black smoke |  |  | vn roll-51.3.1 «NP V NP PP.trajectory»: agent=Agent sea=Theme into smoke=Trajectory |
| 7 | **build** | present | the minerals *not said here* | tall chimneys |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset chimney=Product |

<!-- .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.

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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:biology:177-vents-and-trenches-tubeworms-iron-snails-the-challenger-deep-and-life-without-sunlight.lesson:0`.

**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): R6-punct-agree ×1, R7-rel-agree ×1. **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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