---
title: Spread out flat, all the alveoli would cover an area roughly the siz… — Lungs and breathing · tree and pragmatics
description: Spread out flat, all the alveoli would cover an area roughly the size of half a tennis court, a huge surface for oxygen to pass into the blood. Who acts: you, alveoli. A sentence of the lesson «Lungs and breathing» of the biology course of Mova's primary school with its dependency tree and the pragm
---

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# Lungs and breathing, sentence 10

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Spread out flat, all the alveoli would cover an area roughly the size of half a tennis court, a huge surface for oxygen to pass into the blood.

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**Who acts:** you, alveoli · **What happens:** spread out, cover, pass · **To what, where:** area, blood

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This is a sentence of the lesson «Lungs and breathing» 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 (you, alveoli), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:066-lungs-and-breathing.lesson:10
# text = Spread out flat, all the alveoli would cover an area roughly the size of half a tennis court, a huge surface for oxygen to pass into the blood.
# source = school lesson (ours)
# course = biology
# lesson = 066-lungs-and-breathing.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): R5-strong ×1, R7-rel-agree ×1
1	Spread	spread	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	out	out	ADV	RB	_	1	compound:prt	_	Agree=R7-rel-agree|Haiku=1:advmod
3	flat	flat	ADV	RB	_	1	advmod	_	_
4	,	,	PUNCT	,	_	9	punct	_	_
5	all	all	DET	PDT	PronType=Tot	7	det:predet	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	alveoli	alveolus	NOUN	NNS	Number=Plur	9	nsubj	_	_
8	would	would	AUX	MD	VerbForm=Fin	9	aux	_	_
9	cover	cover	VERB	VB	VerbForm=Inf	1	conj	_	_
10	an	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
11	area	area	NOUN	NN	Number=Sing	9	obj	_	_
12	roughly	roughly	ADV	RB	_	14	advmod	_	Agree=R5-strong|Haiku=9:advmod
13	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
14	size	size	NOUN	NN	Number=Sing	9	obj	_	_
15	of	of	ADP	IN	_	19	case	_	_
16	half	half	DET	PDT	NumForm=Word|NumType=Frac|PronType=Ind	19	det:predet	_	_
17	a	a	DET	DT	Definite=Ind|PronType=Art	19	det	_	_
18	tennis	tennis	NOUN	NN	Number=Sing	19	compound	_	_
19	court	court	NOUN	NN	Number=Sing	14	nmod	_	_
20	,	,	PUNCT	,	_	23	punct	_	_
21	a	a	DET	DT	Definite=Ind|PronType=Art	23	det	_	_
22	huge	huge	ADJ	JJ	Degree=Pos	23	amod	_	_
23	surface	surface	NOUN	NN	Number=Sing	11	appos	_	_
24	for	for	ADP	IN	_	25	case	_	_
25	oxygen	oxygen	NOUN	NN	Number=Sing	23	nmod	_	_
26	to	to	PART	TO	_	27	mark	_	_
27	pass	pass	VERB	VB	VerbForm=Inf	23	acl	_	_
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	.	.	PUNCT	.	_	1	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
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 | **spread out** | imperative | you *not said here* |  |  |  |  | flat *property* | vn appear-48.1.1 «NP V»: agent=Theme |
| 2 | **cover** | would | all alveoli | a area |  |  |  |  | tree rules |
| 3 | **pass** | to-infinitive | all alveoli *not said here* |  |  | the blood |  |  | vn escape-51.1-1-3 «NP V PP.initial\_location»: agent=Theme into blood=Initial\_Location |

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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:066-lungs-and-breathing.lesson:10`.

**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): R5-strong ×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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