---
title: Oxygen passes into the blood through the thin walls of the air sacs,… — The human body deeper: lungs, stomach and guts · tree and pragmatics
description: Oxygen passes into the blood through the thin walls of the air sacs, and carbon dioxide passes out to be breathed away. Who acts: Oxygen, carbon dioxide. A sentence of the lesson «The human body deeper: lungs, stomach and guts» of the biology course of Mova's primary school with its dependency tree 
---

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# The human body deeper: lungs, stomach and guts, sentence 8

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Oxygen passes into the blood through the thin walls of the air sacs, and carbon dioxide passes out to be breathed away.

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**Who acts:** Oxygen, carbon dioxide · **What happens:** pass, pass out, breathe away · **To what, where:** blood

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This is a sentence of the lesson «The human body deeper: lungs, stomach and guts» 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 (Oxygen, carbon dioxide), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:262-human-body-deeper-lungs-stomach-and-guts.lesson:8
# text = Oxygen passes into the blood through the thin walls of the air sacs, and carbon dioxide passes out to be breathed away.
# source = school lesson (ours)
# course = biology
# lesson = 262-human-body-deeper-lungs-stomach-and-guts.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 ×1
1	Oxygen	oxygen	NOUN	NN	Number=Sing	2	nsubj	_	_
2	passes	pass	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	into	into	ADP	IN	_	5	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	blood	blood	NOUN	NN	Number=Sing	2	obl	_	_
6	through	through	ADP	IN	_	9	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
8	thin	thin	ADJ	JJ	Degree=Pos	9	amod	_	_
9	walls	wall	NOUN	NNS	Number=Plur	2	obl	_	_
10	of	of	ADP	IN	_	13	case	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
12	air	air	NOUN	NN	Number=Sing	13	compound	_	_
13	sacs	sac	NOUN	NNS	Number=Plur	9	nmod	_	_
14	,	,	PUNCT	,	_	18	punct	_	_
15	and	and	CCONJ	CC	_	18	cc	_	_
16	carbon	carbon	NOUN	NN	Number=Sing	17	compound	_	_
17	dioxide	dioxide	NOUN	NN	Number=Sing	18	nsubj	_	_
18	passes	pass	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
19	out	out	ADP	RP	_	18	compound:prt	_	_
20	to	to	PART	TO	_	22	mark	_	_
21	be	be	AUX	VB	VerbForm=Inf	22	aux:pass	_	_
22	breathed	breathe	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	18	advcl	_	Agree=R7-rel-agree|Haiku=18:xcomp
23	away	away	ADV	RB	_	22	advmod	_	_
24	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

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No stored speech act for this sentence.

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **pass** | present | Oxygen |  |  | the blood |  | through the thin walls of the air sacs | vn escape-51.1-1-3 «NP V PP.initial\_location PP.destination»: agent=Theme into blood=Initial\_Location through wall=Destination |
| 2 | **pass out** | present | carbon dioxide |  |  |  |  |  | vn change\_bodily\_state-40.8.4 «NP V»: agent=Experiencer |
| 3 | **breathe away** | to-infinitive · passive | carbon dioxide *not said here* |  |  |  |  | away *property* | vn breathe-40.1.2-1 «NP V» |

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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:biology:262-human-body-deeper-lungs-stomach-and-guts.lesson:8`.

**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 ×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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