---
title: In February 1987 a supernova in the Large Magellanic Cloud, a small… — How stars die · tree and pragmatics
description: In February 1987 a supernova in the Large Magellanic Cloud, a small galaxy next to ours, became visible to the naked eye from the southern hemisphere, though not from northern lands like Britain; it was the closest seen since 1604. Who acts: supernova. A sentence of the lesson «How stars die» of the
---

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# How stars die, sentence 11

<!-- .ven lang=en -->
In February 1987 a supernova in the Large Magellanic Cloud, a small galaxy next to ours, became visible to the naked eye from the southern hemisphere, though not from northern lands like Britain; it was the closest seen since 1604.

<!-- .vintro -->
**Who acts:** supernova · **What happens:** become, see · **To what, where:** supernova

<!-- .vabout -->
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 (supernova), 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:11
# text = In February 1987 a supernova in the Large Magellanic Cloud, a small galaxy next to ours, became visible to the naked eye from the southern hemisphere, though not from northern lands like Britain; it was the closest seen since 1604.
# 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): R8-pos-agree ×1
1	In	in	ADP	IN	_	2	case	_	_
2	February	February	PROPN	NNP	Number=Sing	19	obl	_	_
3	1987	1987	NUM	CD	NumForm=Digit|NumType=Card	2	nmod:unmarked	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	supernova	supernova	NOUN	NN	Number=Sing	19	nsubj	_	_
6	in	in	ADP	IN	_	10	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
8	Large	large	ADJ	JJ	Degree=Pos	10	amod	_	_
9	Magellanic	Magellanic	PROPN	NNP	Number=Sing	10	compound	_	_
10	Cloud	cloud	PROPN	NNP	Number=Sing	5	nmod	_	Agree=R8-pos-agree|Haiku=5:nmod|HaikuPos=NOUN:NN:Number=Sing
11	,	,	PUNCT	,	_	14	punct	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	14	det	_	_
13	small	small	ADJ	JJ	Degree=Pos	14	amod	_	_
14	galaxy	galaxy	NOUN	NN	Number=Sing	10	appos	_	_
15	next	next	ADV	RB	_	14	advmod	_	_
16	to	to	ADP	IN	_	17	case	_	_
17	ours	our	PRON	PRP	Number=Plur|Person=1|Poss=Yes|PronType=Prs	15	obl	_	_
18	,	,	PUNCT	,	_	15	punct	_	_
19	became	become	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
20	visible	visible	ADJ	JJ	Degree=Pos	19	xcomp	_	_
21	to	to	ADP	IN	_	24	case	_	_
22	the	the	DET	DT	Definite=Def|PronType=Art	24	det	_	_
23	naked	naked	ADJ	JJ	Degree=Pos	24	amod	_	_
24	eye	eye	NOUN	NN	Number=Sing	20	obl	_	_
25	from	from	ADP	IN	_	28	case	_	_
26	the	the	DET	DT	Definite=Def|PronType=Art	28	det	_	_
27	southern	southern	ADJ	JJ	Degree=Pos	28	amod	_	_
28	hemisphere	hemisphere	NOUN	NN	Number=Sing	24	nmod	_	_
29	,	,	PUNCT	,	_	34	punct	_	_
30	though	though	SCONJ	IN	_	34	mark	_	_
31	not	not	PART	RB	Polarity=Neg	34	advmod	_	_
32	from	from	ADP	IN	_	34	case	_	_
33	northern	northern	ADJ	JJ	Degree=Pos	34	amod	_	_
34	lands	land	NOUN	NNS	Number=Plur	20	obl	_	_
35	like	like	ADP	IN	_	36	case	_	_
36	Britain	Britain	PROPN	NNP	Number=Sing	34	nmod	_	_
37	;	;	PUNCT	:	_	42	punct	_	_
38	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	42	nsubj:pass	_	_
39	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	42	aux:pass	_	_
40	the	the	DET	DT	Definite=Def|PronType=Art	41	det	_	_
41	closest	close	ADJ	JJS	Degree=Sup	42	amod	_	_
42	seen	see	VERB	VBN	Tense=Past|VerbForm=Part	19	conj	_	_
43	since	since	ADP	IN	_	44	case	_	_
44	1604	1604	NUM	CD	NumForm=Digit|NumType=Card	42	obl	_	_
45	.	.	PUNCT	.	_	19	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- sa -->
- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: changed polarity=none

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **become** | past | a supernova in the Large Magellanic Cloud |  |  |  | february | visible *property* | vn become-109.1-1-1 «NP V PP.attribute»: agent=Patient |
| 2 | **see** | past · passive |  | supernova |  |  | since 1604 |  | vn comprehend-87.2-1-1 «NP V NP»: subject=Stimulus |

<!-- .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:11`.

**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): R8-pos-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/).

<!-- /div -->

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