---
title: Rubbing a balloon on your hair moves electrons onto the balloon, so… — Static electricity: balloons, hair and sparks · tree and pragmatics
description: Rubbing a balloon on your hair moves electrons onto the balloon, so the balloon and your hair carry opposite charges and pull on each other. Who acts: Rubbing, balloon. A sentence of the lesson «Static electricity: balloons, hair and sparks» of the physics course of Mova's primary school with its de
---

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# Static electricity: balloons, hair and sparks, sentence 5

<!-- .ven lang=en -->
Rubbing a balloon on your hair moves electrons onto the balloon, so the balloon and your hair carry opposite charges and pull on each other.

<!-- .vintro -->
**Who acts:** Rubbing, balloon · **What happens:** rub, move, carry, pull · **To what, where:** balloon, hair, electrons, opposite charges

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This is a sentence of the lesson «Static electricity: balloons, hair and sparks» 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 (Rubbing, balloon), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:physics:026-static-electricity-balloons-hair-and-sparks.lesson:5
# text = Rubbing a balloon on your hair moves electrons onto the balloon, so the balloon and your hair carry opposite charges and pull on each other.
# source = school lesson (ours)
# course = physics
# lesson = 026-static-electricity-balloons-hair-and-sparks.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): R2-punct-next ×1, R5-strong ×3, R6-punct-agree ×1
1	Rubbing	rub	VERB	VBG	Tense=Pres|VerbForm=Part	7	csubj	_	_
2	a	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
3	balloon	balloon	NOUN	NN	Number=Sing	1	obj	_	_
4	on	on	ADP	IN	_	6	case	_	_
5	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	6	nmod:poss	_	_
6	hair	hair	NOUN	NN	Number=Sing	1	obl	_	Agree=R5-strong|Haiku=3:nmod
7	moves	move	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
8	electrons	electron	NOUN	NNS	Number=Plur	7	obj	_	_
9	onto	onto	ADP	IN	_	11	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	balloon	balloon	NOUN	NN	Number=Sing	7	obl	_	Agree=R5-strong|Haiku=8:nmod
12	,	,	PUNCT	,	_	19	punct	_	Agree=R2-punct-next|Haiku=7:punct
13	so	so	ADV	RB	_	19	advmod	_	_
14	the	the	DET	DT	Definite=Def|PronType=Art	15	det	_	_
15	balloon	balloon	NOUN	NN	Number=Sing	19	nsubj	_	_
16	and	and	CCONJ	CC	_	18	cc	_	_
17	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	18	nmod:poss	_	_
18	hair	hair	NOUN	NN	Number=Sing	15	conj	_	Agree=R5-strong|Haiku=19:nsubj
19	carry	carry	VERB	VB	VerbForm=Inf	7	conj	_	_
20	opposite	opposite	ADJ	JJ	Degree=Pos	21	amod	_	_
21	charges	charge	NOUN	NNS	Number=Plur	19	obj	_	_
22	and	and	CCONJ	CC	_	23	cc	_	_
23	pull	pull	VERB	VB	VerbForm=Inf	19	conj	_	_
24	on	on	ADP	IN	_	25	case	_	_
25	each	each	DET	DT	PronType=Tot	23	nmod	_	_
26	other	other	ADJ	JJ	Degree=Pos	25	fixed	_	_
27	.	.	PUNCT	.	_	7	punct	_	Agree=R6-punct-agree|Haiku=1: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 | **rub** | gerund |  | a balloon |  | your hair |  |  | vn spray-9.7-1 «NP V NP PP.destination»: agent=Agent balloon=Theme on hair=Destination |
| 2 | **move** | present | Rubbing | electrons |  | the balloon |  |  | vn roll-51.3.1 «NP V NP PP.trajectory»: agent=Agent electron=Theme onto balloon=Trajectory |
| 3 | **carry** | infinitive | the balloon and your hair | opposite charges |  |  |  |  | vn carry-11.4 «NP V NP»: agent=Agent charge=Theme |
| 4 | **pull** | infinitive | the balloon and your hair *not said here* |  |  |  |  | on each | vn push-12-1 «NP V PP-Conative»: agent=Agent on each=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:026-static-electricity-balloons-hair-and-sparks.lesson:5`.

**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): R2-punct-next ×1, R5-strong ×3, R6-punct-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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