---
title: The Sun is slowly getting brighter, by about 10% every billion years. — How stars live · tree and pragmatics
description: The Sun is slowly getting brighter, by about 10% every billion years. Who acts: Sun. 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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# How stars live, sentence 13

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The Sun is slowly getting brighter, by about 10% every billion years.

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**Who acts:** Sun · **What happens:** get, be

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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 (Sun), 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:13
# text = The Sun is slowly getting brighter, by about 10% every billion years.
# 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): R5-strong ×2
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	Sun	Sun	PROPN	NNP	Number=Sing	6	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
4	slowly	slowly	ADV	RB	_	6	advmod	_	_
5	getting	get	VERB	VBG	VerbForm=Ger	0	root	_	Agree=R5-strong|Haiku=6:xcomp
6	brighter	bright	ADJ	JJR	Degree=Cmp	5	xcomp	_	Agree=R5-strong|Haiku=0:root
7	,	,	PUNCT	,	_	11	punct	_	_
8	by	by	ADP	IN	_	11	case	_	_
9	about	about	ADV	RB	_	10	advmod	_	_
10	10	10	NUM	CD	NumForm=Digit|NumType=Card	11	nummod	_	_
11	%	%	SYM	NN	Number=Sing	6	obl	_	_
12	every	every	DET	DT	PronType=Tot	14	det	_	_
13	billion	billion	NUM	CD	NumForm=Word|NumType=Card	14	nummod	_	_
14	years	year	NOUN	NNS	Number=Plur	6	obl:unmarked	_	_
15	.	.	PUNCT	.	_	6	punct	_	_
```

## Pragmatics {#pragmatics}

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No stored speech act for this sentence.

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **get** | gerund |  |  |  |  |  |  | vn comprehend-87.2-1 «NP V S\_ING»: agent=Experiencer |
| 2 | **is** | present | the Sun |  |  |  | year | bright, slowly *property* | tree rules |

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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:13`.

**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 ×2. **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, 12](https://md.mova.elamur.ai/free/en/corpora/school/space/18-how-stars-live/12/)
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- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/space/18-how-stars-live/)

