---
title: A banana skin is slippery because its squashed inside makes a slimy… — Living with friction: oil, wheels and grip · tree and pragmatics
description: A banana skin is slippery because its squashed inside makes a slimy layer between your shoe and the floor. Who acts: banana skin, squashed inside. 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 18

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A banana skin is slippery because its squashed inside makes a slimy layer between your shoe and the floor.

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**Who acts:** banana skin, squashed inside · **What happens:** be, squash, make · **To what, where:** slimy layer

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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 (banana skin, squashed inside), 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:18
# text = A banana skin is slippery because its squashed inside makes a slimy layer between your shoe and the floor.
# 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): R5-strong ×1
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	banana	banana	NOUN	NN	Number=Sing	3	compound	_	_
3	skin	skin	NOUN	NN	Number=Sing	5	nsubj	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
5	slippery	slippery	ADJ	JJ	Degree=Pos	0	root	_	_
6	because	because	SCONJ	IN	_	10	mark	_	_
7	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	9	nmod:poss	_	_
8	squashed	squash	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	9	amod	_	_
9	inside	inside	NOUN	NN	Number=Sing	10	nsubj	_	_
10	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	advcl	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
12	slimy	slimy	ADJ	JJ	Degree=Pos	13	amod	_	_
13	layer	layer	NOUN	NN	Number=Sing	10	obj	_	_
14	between	between	ADP	IN	_	16	case	_	_
15	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	16	nmod:poss	_	_
16	shoe	shoe	NOUN	NN	Number=Sing	13	nmod	_	Agree=R5-strong|Haiku=10:obl
17	and	and	CCONJ	CC	_	19	cc	_	_
18	the	the	DET	DT	Definite=Def|PronType=Art	19	det	_	_
19	floor	floor	NOUN	NN	Number=Sing	16	conj	_	_
20	.	.	PUNCT	.	_	5	punct	_	_
```

## Pragmatics {#pragmatics}

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No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | a banana skin |  |  |  |  | slippery *property* | tree rules |
| 2 | **squash** | participle |  |  |  |  |  |  | vn bump-18.4-1 «NP V together»: agent=Theme |
| 3 | **make** | present | skin's squashed inside | a slimy layer |  |  |  | between your shoe and the floor | vn build-26.1-1 «NP.asset V NP»: agent=Asset layer=Product |

<!-- .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:18`.

**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. **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: [Living with friction: oil, wheels and…, 17](https://md.mova.elamur.ai/free/en/corpora/school/physics/7-living-with-friction/17/)
- next →: [Balance: the centre of gravity, 0](https://md.mova.elamur.ai/free/en/corpora/school/physics/8-balance-the-centre-of-gravity/0/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/physics/7-living-with-friction/)