---
title: To make it smaller, we put oil between rubbing parts, or we use whee… — Living with friction: oil, wheels and grip · tree and pragmatics
description: To make it smaller, we put oil between rubbing parts, or we use wheels and ball bearings so that things roll instead of rub. Who acts: we, things. A sentence of the lesson «Living with friction: oil, wheels and grip» of the physics course of Mova's primary school with its dependency tree and the pra
---

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# Living with friction: oil, wheels and grip, sentence 1

<!-- .ven lang=en -->
To make it smaller, we put oil between rubbing parts, or we use wheels and ball bearings so that things roll instead of rub.

<!-- .vintro -->
**Who acts:** we, things · **What happens:** make, put, rub, use, roll · **To what, where:** it, oil, rubbing parts, wheels

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This is a sentence of the lesson «Living with friction: oil, wheels and grip» of the physics 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 (we, things), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:physics:007-living-with-friction.lesson:1
# text = To make it smaller, we put oil between rubbing parts, or we use wheels and ball bearings so that things roll instead of rub.
# source = school lesson (ours)
# course = physics
# lesson = 007-living-with-friction.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): R8-pos-agree ×1
1	To	to	PART	TO	_	2	mark	_	_
2	make	make	VERB	VB	VerbForm=Inf	7	advcl	_	_
3	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	obj	_	_
4	smaller	small	ADJ	JJR	Degree=Cmp	2	xcomp	_	_
5	,	,	PUNCT	,	_	2	punct	_	_
6	we	we	PRON	PRP	Case=Nom|Number=Plur|Person=1|PronType=Prs	7	nsubj	_	_
7	put	put	VERB	VBD	Mood=Ind|Number=Plur|Person=1|Tense=Past|VerbForm=Fin	0	root	_	_
8	oil	oil	NOUN	NN	Number=Sing	7	obj	_	_
9	between	between	ADP	IN	_	11	case	_	_
10	rubbing	rub	VERB	VBG	VerbForm=Ger	11	amod	_	_
11	parts	part	NOUN	NNS	Number=Plur	7	obl	_	_
12	,	,	PUNCT	,	_	15	punct	_	_
13	or	or	CCONJ	CC	_	15	cc	_	_
14	we	we	PRON	PRP	Case=Nom|Number=Plur|Person=1|PronType=Prs	15	nsubj	_	_
15	use	use	VERB	VBP	Mood=Ind|Number=Plur|Person=1|Tense=Pres|VerbForm=Fin	7	conj	_	_
16	wheels	wheel	NOUN	NNS	Number=Plur	15	obj	_	_
17	and	and	CCONJ	CC	_	19	cc	_	_
18	ball	ball	NOUN	NN	Number=Sing	19	compound	_	_
19	bearings	bearing	NOUN	NNS	Number=Plur	16	conj	_	_
20	so	so	SCONJ	IN	_	23	mark	_	_
21	that	that	DET	DT	Number=Sing|PronType=Dem	22	det	_	_
22	things	thing	NOUN	NNS	Number=Plur	23	nsubj	_	_
23	roll	roll	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	15	advcl	_	Agree=R8-pos-agree|Haiku=15:advcl|HaikuPos=VERB:VB:VerbForm=Inf
24	instead	instead	ADV	RB	ExtPos=ADP	26	case	_	_
25	of	of	ADP	IN	_	24	fixed	_	_
26	rub	rub	NOUN	NN	Number=Sing	23	obl	_	_
27	.	.	PUNCT	.	_	7	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 | **make** | to-infinitive | we *not said here* | it |  |  |  | small *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset it=Product |
| 2 | **put** | past | we | oil |  | rubbing parts |  |  | vn put-9.1-2 «NP V NP PP.destination»: agent=Agent oil=Theme between part=Destination |
| 3 | **rub** | gerund |  |  |  |  |  |  | vn spray-9.7-1 «NP V PP.destination»: agent=Theme |
| 4 | **use** | present | we | wheels and ball bearings |  |  |  |  | vn eat-39.1 «NP V NP»: agent=Agent wheel=Patient |
| 5 | **roll** | present | that things |  |  |  |  | instead rub | vn run-51.3.2-2 «NP V»: agent=Theme |

<!-- .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:physics:007-living-with-friction.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): R8-pos-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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- ← previous: [Friction: the grip that stops and helps, 17](https://md.mova.elamur.ai/free/en/corpora/school/physics/6-friction-the-grip/17/)
- next →: [Living with friction: oil, wheels and…, 2](https://md.mova.elamur.ai/free/en/corpora/school/physics/7-living-with-friction/2/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/physics/7-living-with-friction/)