---
title: During most of its life a star is held in balance: gravity pulls inw… — How stars live · tree and pragmatics
description: During most of its life a star is held in balance: gravity pulls inwards and the pressure of hot gas pushes outwards. Who acts: gravity, pressure. A sentence of the lesson «How stars live» of the space course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Space](https://md.mova.elamur.ai/free/en/corpora/school/space/) / [How stars live](https://md.mova.elamur.ai/free/en/corpora/school/space/18-how-stars-live/) / 8

# How stars live, sentence 8

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During most of its life a star is held in balance: gravity pulls inwards and the pressure of hot gas pushes outwards.

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**Who acts:** gravity, pressure · **What happens:** hold, pull, push, press · **To what, where:** star, balance, hot gas

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This is a sentence of the lesson «How stars live» of the space 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 (gravity, pressure), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:space:018-how-stars-live.lesson:8
# text = During most of its life a star is held in balance: gravity pulls inwards and the pressure of hot gas pushes outwards.
# source = school lesson (ours)
# course = space
# lesson = 018-how-stars-live.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	During	during	ADP	IN	_	2	case	_	_
2	most	most	ADJ	JJS	Degree=Sup	9	obl	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	5	nmod:poss	_	_
5	life	life	NOUN	NN	Number=Sing	2	nmod	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
7	star	star	NOUN	NN	Number=Sing	9	nsubj:pass	_	_
8	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	aux:pass	_	_
9	held	hold	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
10	in	in	ADP	IN	_	11	case	_	_
11	balance	balance	NOUN	NN	Number=Sing	9	obl	_	_
12	:	:	PUNCT	:	_	14	punct	_	_
13	gravity	gravity	NOUN	NN	Number=Sing	14	nsubj	_	_
14	pulls	pull	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	parataxis	_	_
15	inwards	inwards	ADV	RB	_	14	advmod	_	_
16	and	and	CCONJ	CC	_	22	cc	_	_
17	the	the	DET	DT	Definite=Def|PronType=Art	18	det	_	_
18	pressure	pressure	NOUN	NN	Number=Sing	22	nsubj	_	_
19	of	of	ADP	IN	_	21	case	_	_
20	hot	hot	ADJ	JJ	Degree=Pos	21	amod	_	_
21	gas	gas	NOUN	NN	Number=Sing	18	nmod	_	_
22	pushes	push	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	conj	_	_
23	outwards	outward	ADV	RB	_	22	advmod	_	_
24	.	.	PUNCT	.	_	9	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **hold** | present · passive |  | a star |  | balance | during most of dust's life |  | vn keep-15.2 «NP V NP PP.location»: subject=Theme in balance=Location |
| 2 | **pull** | present | gravity |  |  |  |  | inwards *property* | vn slide-11.2 «NP V»: agent=Theme |
| 3 | **push** | present | the pressure of hot gas |  |  |  |  | outward *property* | vn push-12-1-1 «NP V PP»: agent=Agent |
| 4 | **press** |  |  | hot gas |  |  |  |  | nom pressure «phenomenon transitive»: of=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:space:018-how-stars-live.lesson:8`.

**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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- ← previous: [How stars live, 7](https://md.mova.elamur.ai/free/en/corpora/school/space/18-how-stars-live/7/)
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