---
title: Deep in the Sun's core, at about 15 million °C, hydrogen nuclei are… — Stars: what they are · tree and pragmatics
description: Deep in the Sun's core, at about 15 million °C, hydrogen nuclei are squeezed together to make helium, releasing enormous energy. A sentence of the lesson «Stars: what they are» of the space course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Stars: what they are, sentence 7

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Deep in the Sun's core, at about 15 million °C, hydrogen nuclei are squeezed together to make helium, releasing enormous energy.

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**What happens:** squeeze, make, release · **To what, where:** core, helium, enormous energy

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This is a sentence of the lesson «Stars: what they are» 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: what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:space:017-stars-what-they-are.lesson:7
# text = Deep in the Sun's core, at about 15 million °C, hydrogen nuclei are squeezed together to make helium, releasing enormous energy.
# source = school lesson (ours)
# course = space
# lesson = 017-stars-what-they-are.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	Deep	deep	ADV	RB	_	6	advmod	_	_
2	in	in	ADP	IN	_	6	case	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	Sun	Sun	PROPN	NNP	Number=Sing	6	nmod:poss	_	_
5	's	's	PART	POS	_	4	case	_	_
6	core	core	NOUN	NN	Number=Sing	18	nsubj:pass	_	_
7	,	,	PUNCT	,	_	11	punct	_	_
8	at	at	ADP	IN	_	11	case	_	_
9	about	about	ADV	RB	_	11	advmod	_	Agree=R5-strong|Haiku=10:advmod
10	15	15	NUM	CD	NumForm=Digit|NumType=Card	11	compound	_	_
11	million	million	NUM	CD	NumForm=Word|NumType=Card	6	nmod	_	_
12	°	°	ADP	IN	_	13	case	_	_
13	C	C	PROPN	NNP	Number=Sing	11	nmod	_	_
14	,	,	PUNCT	,	_	16	punct	_	_
15	hydrogen	hydrogen	NOUN	NN	Number=Sing	16	compound	_	_
16	nuclei	nucleus	NOUN	NNS	Number=Plur	18	nsubj	_	_
17	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	18	aux:pass	_	_
18	squeezed	squeeze	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
19	together	together	ADV	RB	_	18	advmod	_	_
20	to	to	PART	TO	_	21	mark	_	_
21	make	make	VERB	VB	VerbForm=Inf	18	advcl	_	_
22	helium	helium	NOUN	NN	Number=Sing	21	obj	_	_
23	,	,	PUNCT	,	_	24	punct	_	_
24	releasing	release	VERB	VBG	Tense=Pres|VerbForm=Part	21	advcl	_	_
25	enormous	enormous	ADJ	JJ	Degree=Pos	26	amod	_	_
26	energy	energy	NOUN	NN	Number=Sing	24	obj	_	_
27	.	.	PUNCT	.	_	18	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 | **squeeze** | present · passive |  | the Sun's core at 15 million ° C |  |  |  | together *property* | vn push-12-1-1 «NP V NP»: subject=Theme |
| 2 | **make** | to-infinitive |  | helium |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset helium=Product |
| 3 | **release** | gerund |  | enormous energy |  |  |  |  | vn free-10.6.3-1 «NP V NP S\_ING»: agent=Causer energy=Source |

<!-- .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:space:017-stars-what-they-are.lesson:7`.

**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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