---
title: Breathing helium from a gas tank is dangerous: it can harm the lungs… — Elements and the famous members of the periodic… · tree and pragmatics
description: Breathing helium from a gas tank is dangerous: it can harm the lungs and leaves the body without oxygen. Who acts: Breathing, Helium. A sentence of the lesson «Elements and the famous members of the periodic table» of the chemistry course of Mova's primary school with its dependency tree and the pra
---

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# Elements and the famous members of the periodic table, sentence 13

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Breathing helium from a gas tank is dangerous: it can harm the lungs and leaves the body without oxygen.

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**Who acts:** Breathing, Helium · **What happens:** breathe, be, harm, leave · **To what, where:** helium, gas tank, lungs, body

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This is a sentence of the lesson «Elements and the famous members of the periodic table» of the chemistry 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 (Breathing, Helium), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:chemistry:002-elements-and-the-periodic-table.lesson:13
# text = Breathing helium from a gas tank is dangerous: it can harm the lungs and leaves the body without oxygen.
# source = school lesson (ours)
# course = chemistry
# lesson = 002-elements-and-the-periodic-table.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): no change
1	Breathing	breathe	VERB	VBG	VerbForm=Ger	8	csubj	_	_
2	helium	helium	NOUN	NN	Number=Sing	1	obj	_	_
3	from	from	ADP	IN	_	6	case	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
5	gas	gas	NOUN	NN	Number=Sing	6	compound	_	_
6	tank	tank	NOUN	NN	Number=Sing	1	obl	_	_
7	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
8	dangerous	dangerous	ADJ	JJ	Degree=Pos	0	root	_	_
9	:	:	PUNCT	:	_	12	punct	_	_
10	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	12	nsubj	_	_
11	can	can	AUX	MD	VerbForm=Fin	12	aux	_	_
12	harm	harm	VERB	VB	VerbForm=Inf	8	parataxis	_	_
13	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
14	lungs	lung	NOUN	NNS	Number=Plur	12	obj	_	_
15	and	and	CCONJ	CC	_	16	cc	_	_
16	leaves	leave	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	12	conj	_	_
17	the	the	DET	DT	Definite=Def|PronType=Art	18	det	_	_
18	body	body	NOUN	NN	Number=Sing	16	obj	_	_
19	without	without	ADP	IN	_	20	case	_	_
20	oxygen	oxygen	NOUN	NN	Number=Sing	16	obl	_	_
21	.	.	PUNCT	.	_	8	punct	_	_
```

## Pragmatics {#pragmatics}

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No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **breathe** | gerund |  | helium |  | a gas tank |  |  | vn breathe-40.1.2-1 «NP V NP»: agent=Agent helium=Theme |
| 2 | **is** | present | Breathing |  |  |  |  | dangerous *property* | tree rules |
| 3 | **harm** | can | Helium | the lungs |  |  |  |  | vn amuse-31.1 «NP V NP»: agent=Stimulus lung=Experiencer |
| 4 | **leave** | present | Helium *not said here* | the body |  |  |  | without oxygen | vn keep-15.2 «NP V NP»: agent=Agent body=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.

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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:chemistry:002-elements-and-the-periodic-table.lesson:13`.

**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): no change. **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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