---
title: The Sun is about 4.6 billion years old, roughly halfway through its… — How stars live · tree and pragmatics
description: The Sun is about 4.6 billion years old, roughly halfway through its life of about 10 billion years as a normal star. 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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[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/) / 10

# How stars live, sentence 10

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The Sun is about 4.6 billion years old, roughly halfway through its life of about 10 billion years as a normal star.

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**Who acts:** Sun · **What happens:** be · **To what, where:** life

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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:10
# text = The Sun is about 4.6 billion years old, roughly halfway through its life of about 10 billion years as a normal star.
# 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): R7-rel-agree ×1
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	Sun	Sun	PROPN	NNP	Number=Sing	8	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
4	about	about	ADV	RB	_	6	advmod	_	_
5	4.6	4.6	NUM	CD	NumForm=Digit|NumType=Card	6	compound	_	_
6	billion	billion	NUM	CD	NumForm=Word|NumType=Card	7	nummod	_	_
7	years	year	NOUN	NNS	Number=Plur	8	obl:unmarked	_	_
8	old	old	ADJ	JJ	Degree=Pos	0	root	_	_
9	,	,	PUNCT	,	_	8	punct	_	_
10	roughly	roughly	ADV	RB	_	11	advmod	_	_
11	halfway	halfway	ADV	RB	_	14	advmod	_	_
12	through	through	ADP	IN	_	14	case	_	_
13	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	14	nmod:poss	_	_
14	life	life	NOUN	NN	Number=Sing	8	obl	_	_
15	of	of	ADP	IN	_	19	case	_	_
16	about	about	ADV	RB	_	18	advmod	_	_
17	10	10	NUM	CD	NumForm=Digit|NumType=Card	18	compound	_	_
18	billion	billion	NUM	CD	NumForm=Word|NumType=Card	19	nummod	_	_
19	years	year	NOUN	NNS	Number=Plur	14	nmod	_	Agree=R7-rel-agree|Haiku=14:obl
20	as	as	ADP	IN	_	23	case	_	_
21	a	a	DET	DT	Definite=Ind|PronType=Art	23	det	_	_
22	normal	normal	ADJ	JJ	Degree=Pos	23	amod	_	_
23	star	star	NOUN	NN	Number=Sing	8	obl	_	_
24	.	.	PUNCT	.	_	8	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 | **is** | present | the Sun |  |  | Sun's life of billion years | year | as a normal star; old *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:10`.

**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): R7-rel-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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