---
title: In 1054 Chinese astronomers recorded a "guest star" bright enough to… — How stars die · tree and pragmatics
description: In 1054 Chinese astronomers recorded a "guest star" bright enough to see by day for weeks, and its remains are the Crab Nebula in Taurus. Who acts: Chinese astronomers, remains. A sentence of the lesson «How stars die» of the space course of Mova's primary school with its dependency tree and the pra
---

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# How stars die, sentence 10

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In 1054 Chinese astronomers recorded a "guest star" bright enough to see by day for weeks, and its remains are the Crab Nebula in Taurus.

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**Who acts:** Chinese astronomers, remains · **What happens:** record, see, be · **To what, where:** guest star, 1054, Crab Nebula, Taurus

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This is a sentence of the lesson «How stars die» 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 (Chinese astronomers, remains), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:space:019-how-stars-die.lesson:10
# text = In 1054 Chinese astronomers recorded a "guest star" bright enough to see by day for weeks, and its remains are the Crab Nebula in Taurus.
# source = school lesson (ours)
# course = space
# lesson = 019-how-stars-die.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	In	in	ADP	IN	_	2	case	_	_
2	1054	1054	NUM	CD	NumForm=Digit|NumType=Card	5	obl	_	_
3	Chinese	Chinese	ADJ	JJ	Degree=Pos	4	amod	_	_
4	astronomers	astronomer	NOUN	NNS	Number=Plur	5	nsubj	_	_
5	recorded	record	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
7	"	"	PUNCT	``	_	9	punct	_	_
8	guest	guest	NOUN	NN	Number=Sing	9	compound	_	_
9	star	star	NOUN	NN	Number=Sing	5	obj	_	_
10	"	"	PUNCT	''	_	9	punct	_	_
11	bright	bright	ADJ	JJ	Degree=Pos	9	amod	_	Agree=R5-strong|Haiku=5:parataxis
12	enough	enough	ADV	RB	_	11	advmod	_	_
13	to	to	PART	TO	_	14	mark	_	_
14	see	see	VERB	VB	VerbForm=Inf	11	advcl	_	_
15	by	by	ADP	IN	_	16	case	_	_
16	day	day	NOUN	NN	Number=Sing	14	obl	_	_
17	for	for	ADP	IN	_	18	case	_	_
18	weeks	week	NOUN	NNS	Number=Plur	14	obl	_	_
19	,	,	PUNCT	,	_	26	punct	_	_
20	and	and	CCONJ	CC	_	26	cc	_	_
21	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	22	nmod:poss	_	_
22	remains	remains	NOUN	NNS	Number=Ptan	26	nsubj	_	_
23	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	26	cop	_	_
24	the	the	DET	DT	Definite=Def|PronType=Art	26	det	_	_
25	Crab	crab	PROPN	NNP	Number=Sing	26	compound	_	_
26	Nebula	Nebula	PROPN	NNP	Number=Sing	5	conj	_	_
27	in	in	ADP	IN	_	28	case	_	_
28	Taurus	Taurus	PROPN	NNP	Number=Sing	26	nmod	_	_
29	.	.	PUNCT	.	_	5	punct	_	_
```

## Pragmatics {#pragmatics}

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

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **record** | past | Chinese astronomers | a guest star |  | 1054 |  |  | vn scribble-25.2-1 «NP V NP PP.destination»: agent=Agent star=Theme in 1054=Destination |
| 2 | **see** | to-infinitive | Chinese astronomers *not said here* |  |  |  | day; week |  | vn comprehend-87.2-1-1 «NP V»: agent=Experiencer |
| 3 | **is a** | present | star's remains | the Crab Nebula |  | Taurus |  |  | tree rules |

<!-- .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:019-how-stars-die.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): 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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