---
title: Working muscles need more oxygen and make more carbon dioxide. — Thinking like a scientist: the body and physics · tree and pragmatics
description: Working muscles need more oxygen and make more carbon dioxide. Who acts: Working muscles. A sentence of the lesson «Thinking like a scientist: the body and physics» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Thinking like a scientist: the body and physics, sentence 8

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Working muscles need more oxygen and make more carbon dioxide.

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**Who acts:** Working muscles · **What happens:** work, need, make · **To what, where:** more oxygen, more carbon dioxide

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This is a sentence of the lesson «Thinking like a scientist: the body and physics» of the world 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 (Working muscles), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:040-body-and-physics-reasoning.lesson:8
# text = Working muscles need more oxygen and make more carbon dioxide.
# source = school lesson (ours)
# course = world
# lesson = 040-body-and-physics-reasoning.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	Working	work	VERB	VBG	VerbForm=Ger	2	amod	_	_
2	muscles	muscle	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	need	need	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	more	more	ADJ	JJR	Degree=Cmp	5	amod	_	_
5	oxygen	oxygen	NOUN	NN	Number=Sing	3	obj	_	_
6	and	and	CCONJ	CC	_	7	cc	_	_
7	make	make	VERB	VB	VerbForm=Inf	3	conj	_	_
8	more	more	ADJ	JJR	Degree=Cmp	10	amod	_	_
9	carbon	carbon	NOUN	NN	Number=Sing	10	compound	_	_
10	dioxide	dioxide	NOUN	NN	Number=Sing	7	obj	_	_
11	.	.	PUNCT	.	_	3	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **work** | gerund |  |  |  |  |  |  | vn employment-95.3 «NP V»: agent=Agent |
| 2 | **need** | present | Working muscles | more oxygen |  |  |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot oxygen=Theme |
| 3 | **make** | infinitive | Working muscles *not said here* | more carbon dioxide |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset dioxide=Product |

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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:world:040-body-and-physics-reasoning.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): 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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