---
title: The biceps bends the arm and the triceps straightens it. — The skeleton and muscles · tree and pragmatics
description: The biceps bends the arm and the triceps straightens it. Who acts: biceps, triceps. A sentence of the lesson «The skeleton and muscles» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# The skeleton and muscles, sentence 15

<!-- .ven lang=en -->
The biceps bends the arm and the triceps straightens it.

<!-- .vintro -->
**Who acts:** biceps, triceps · **What happens:** bend, straighten · **To what, where:** arm

<!-- .vabout -->
This is a sentence of the lesson «The skeleton and muscles» 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 (biceps, triceps), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:031-skeleton-and-muscles.lesson:15
# text = The biceps bends the arm and the triceps straightens it.
# source = school lesson (ours)
# course = world
# lesson = 031-skeleton-and-muscles.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	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	biceps	biceps	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	bends	bend	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	arm	arm	NOUN	NN	Number=Sing	3	obj	_	_
6	and	and	CCONJ	CC	_	9	cc	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	triceps	triceps	NOUN	NNS	Number=Plur	9	nsubj	_	_
9	straightens	straighten	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	conj	_	_
10	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	9	obj	_	_
11	.	.	PUNCT	.	_	3	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **bend** | present | the biceps | the arm |  |  |  |  | vn knead-26.5 «NP V NP.material»: agent=Agent arm=Material |
| 2 | **straighten** | present | the triceps | arm |  |  |  |  | vn bend-45.2 «NP V NP.patient»: agent=Agent it=Patient |

<!-- .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:world:031-skeleton-and-muscles.lesson:15`.

**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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