---
title: Inside the lungs the air pipes branch like an upside-down tree and e… — The human body deeper: lungs, stomach and guts · tree and pragmatics
description: Inside the lungs the air pipes branch like an upside-down tree and end in hundreds of millions of tiny air sacs, where oxygen slips into the blood through very thin walls and carbon dioxide slips out. Who acts: air pipes, oxygen, carbon dioxide. A sentence of the lesson «The human body deeper: lungs
---

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# The human body deeper: lungs, stomach and guts, sentence 1

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Inside the lungs the air pipes branch like an upside-down tree and end in hundreds of millions of tiny air sacs, where oxygen slips into the blood through very thin walls and carbon dioxide slips out.

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**Who acts:** air pipes, oxygen, carbon dioxide · **What happens:** branch, end, slip, slip out · **To what, where:** lungs, hundreds, 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 (air pipes, 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:1
# text = Inside the lungs the air pipes branch like an upside-down tree and end in hundreds of millions of tiny air sacs, where oxygen slips into the blood through very thin walls and carbon dioxide slips out.
# 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): R6-punct-agree ×1, R7-rel-agree ×1
1	Inside	inside	ADP	IN	_	3	case	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	lungs	lung	NOUN	NNS	Number=Plur	7	obl	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
5	air	air	NOUN	NN	Number=Sing	6	compound	_	_
6	pipes	pipe	NOUN	NNS	Number=Plur	7	nsubj	_	_
7	branch	branch	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
8	like	like	ADP	IN	_	13	case	_	_
9	an	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
10	upside	upside	NOUN	NN	Number=Sing	13	compound	_	_
11	-	-	PUNCT	HYPH	_	12	punct	_	Agree=R6-punct-agree|Haiku=10:punct
12	down	down	ADJ	JJ	Degree=Pos	13	amod	_	_
13	tree	tree	NOUN	NN	Number=Sing	7	obl	_	_
14	and	and	CCONJ	CC	_	15	cc	_	_
15	end	end	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	conj	_	_
16	in	in	ADP	IN	_	17	case	_	_
17	hundreds	hundred	NOUN	NNS	Number=Plur	15	obl	_	Agree=R7-rel-agree|Haiku=15:nmod
18	of	of	ADP	IN	_	19	case	_	_
19	millions	million	NOUN	NNS	Number=Plur	17	nmod	_	_
20	of	of	ADP	IN	_	23	case	_	_
21	tiny	tiny	ADJ	JJ	Degree=Pos	23	amod	_	_
22	air	air	NOUN	NN	Number=Sing	23	compound	_	_
23	sacs	sac	NOUN	NNS	Number=Plur	19	nmod	_	_
24	,	,	PUNCT	,	_	27	punct	_	_
25	where	where	ADV	WRB	PronType=Rel	27	advmod	_	_
26	oxygen	oxygen	NOUN	NN	Number=Sing	27	nsubj	_	_
27	slips	slip	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	23	acl:relcl	_	_
28	into	into	ADP	IN	_	30	case	_	_
29	the	the	DET	DT	Definite=Def|PronType=Art	30	det	_	_
30	blood	blood	NOUN	NN	Number=Sing	27	obl	_	_
31	through	through	ADP	IN	_	34	case	_	_
32	very	very	ADV	RB	_	33	advmod	_	_
33	thin	thin	ADJ	JJ	Degree=Pos	34	amod	_	_
34	walls	wall	NOUN	NNS	Number=Plur	27	obl	_	_
35	and	and	CCONJ	CC	_	38	cc	_	_
36	carbon	carbon	NOUN	NN	Number=Sing	37	compound	_	_
37	dioxide	dioxide	NOUN	NN	Number=Sing	38	nsubj	_	_
38	slips	slip	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	27	conj	_	_
39	out	out	ADP	RP	_	38	compound:prt	_	_
40	.	.	PUNCT	.	_	7	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 | **branch** | present | the air pipes |  |  | the lungs |  | like a upside down tree | vn differ-23.4 «NP V»: agent=Theme |
| 2 | **end** | present | the air pipes *not said here* |  |  | hundreds of millions of tiny air sacs |  |  | vn stop-55.4-1-1 «NP.eventuality V»: agent=Eventuality |
| 3 | **slip** | present | oxygen |  |  | the blood |  | through thin walls | vn calibratable\_cos-45.6.1-1 «NP.attribute V»: agent=Attribute |
| 4 | **slip out** | present | carbon dioxide |  |  |  |  |  | vn calibratable\_cos-45.6.1-1 «NP.attribute V»: agent=Attribute |

<!-- .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:262-human-body-deeper-lungs-stomach-and-guts.lesson:1`.

**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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