---
title: To become a black hole, Earth would have to be squeezed to about 9 m… — Black holes · tree and pragmatics
description: To become a black hole, Earth would have to be squeezed to about 9 millimetres across, about the size of a marble. Who acts: Earth, size. A sentence of the lesson «Black holes» of the space course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Black holes, sentence 13

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To become a black hole, Earth would have to be squeezed to about 9 millimetres across, about the size of a marble.

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**Who acts:** Earth, size · **What happens:** become, have, squeeze · **To what, where:** black hole, size

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This is a sentence of the lesson «Black holes» 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 (Earth, size), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:space:025-black-holes.lesson:13
# text = To become a black hole, Earth would have to be squeezed to about 9 millimetres across, about the size of a marble.
# source = school lesson (ours)
# course = space
# lesson = 025-black-holes.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	To	to	PART	TO	_	2	mark	_	_
2	become	become	VERB	VB	VerbForm=Inf	9	advcl	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
4	black	black	ADJ	JJ	Degree=Pos	5	amod	_	_
5	hole	hole	NOUN	NN	Number=Sing	2	xcomp	_	_
6	,	,	PUNCT	,	_	9	punct	_	_
7	Earth	Earth	PROPN	NNP	Number=Sing	9	nsubj	_	_
8	would	would	AUX	MD	VerbForm=Fin	9	aux	_	_
9	have	have	VERB	VB	VerbForm=Inf	0	root	_	_
10	to	to	PART	TO	_	12	mark	_	_
11	be	be	AUX	VB	VerbForm=Inf	12	aux:pass	_	_
12	squeezed	squeeze	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	9	xcomp	_	_
13	to	to	ADP	IN	_	16	case	_	_
14	about	about	ADV	RB	_	15	advmod	_	_
15	9	9	NUM	CD	NumForm=Digit|NumType=Card	16	nummod	_	_
16	millimetres	millimetre	NOUN	NNS	Number=Plur	12	obl	_	_
17	across	across	ADV	RB	_	9	advmod	_	_
18	,	,	PUNCT	,	_	21	punct	_	_
19	about	about	ADV	RB	_	21	advmod	_	Agree=R7-rel-agree|Haiku=21:case|HaikuPos=ADP:IN:_
20	the	the	DET	DT	Definite=Def|PronType=Art	21	det	_	_
21	size	size	NOUN	NN	Number=Sing	9	obl	_	_
22	of	of	ADP	IN	_	24	case	_	_
23	a	a	DET	DT	Definite=Ind|PronType=Art	24	det	_	_
24	marble	marble	NOUN	NN	Number=Sing	21	nmod	_	_
25	.	.	PUNCT	.	_	9	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 | **become** | to-infinitive | Earth *not said here* | a black hole |  |  |  |  | vn become-109.1-1-1 «NP V PP.attribute»: agent=Patient |
| 2 | **have** | would | Earth | the size of a marble |  |  |  | across *property* | tree rules |
| 3 | **squeeze** | to-infinitive · passive | the size of a marble *not said here* |  |  |  |  | to 9 millimetres | vn push-12-1-1 «NP V PP» |

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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:025-black-holes.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): 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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