---
title: A see-saw, scissors, a bottle opener and a wheelbarrow all use levers. — Simple machines and how they help · tree and pragmatics
description: A see-saw, scissors, a bottle opener and a wheelbarrow all use levers. Who acts: see saw. A sentence of the lesson «Simple machines and how they help» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Simple machines and how they help, sentence 13

<!-- .ven lang=en -->
A see-saw, scissors, a bottle opener and a wheelbarrow all use levers.

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**Who acts:** see saw · **What happens:** use · **To what, where:** levers

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This is a sentence of the lesson «Simple machines and how they help» 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 (see saw), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:052-simple-machines.lesson:13
# text = A see-saw, scissors, a bottle opener and a wheelbarrow all use levers.
# source = school lesson (ours)
# course = world
# lesson = 052-simple-machines.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	A	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
2	see	see	NOUN	NN	Number=Sing	4	compound	_	_
3	-	-	PUNCT	HYPH	_	4	punct	_	_
4	saw	saw	NOUN	NN	Number=Sing	15	nsubj	_	_
5	,	,	PUNCT	,	_	6	punct	_	_
6	scissors	scissors	NOUN	NNS	Number=Plur	4	conj	_	_
7	,	,	PUNCT	,	_	10	punct	_	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
9	bottle	bottle	NOUN	NN	Number=Sing	10	compound	_	_
10	opener	opener	NOUN	NN	Number=Sing	4	appos	_	_
11	and	and	CCONJ	CC	_	13	cc	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
13	wheelbarrow	wheelbarrow	NOUN	NN	Number=Sing	10	conj	_	_
14	all	all	ADV	RB	_	15	advmod	_	_
15	use	use	VERB	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	0	root	_	_
16	levers	lever	NOUN	NNS	Number=Plur	15	obj	_	_
17	.	.	PUNCT	.	_	15	punct	_	_
```

## Pragmatics {#pragmatics}

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- 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 | **use** | present | a see saw and scissors | levers |  |  |  | all *property* | vn eat-39.1 «NP V NP»: agent=Agent lever=Patient |

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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:052-simple-machines.lesson:13`.

**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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