---
title: Two black holes crash a billion light years away. What do we pick up… — Black holes · tree and pragmatics
description: Two black holes crash a billion light years away. What do we pick up on Earth? Test 8 · ★★ of lesson 25 «Black holes» of the space course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Test 8 · ★★ · Black holes

<!-- .ven lang=en -->
Two black holes crash a billion light years away. What do we pick up on Earth?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** Two black holes, we · **What happens:** crash, pick up · **To what, where:** Earth

<!-- .vabout -->
This is test 8 · ★★ of lesson 25 «Black holes» of the space course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/space/25-black-holes/#t8).

## The question {#question}

<!-- .note -->
*Sentence 1:* Two black holes crash a billion light years away.

```conllu
# sent_id = question:space:25-black-holes:t8:1
# text = Two black holes crash a billion light years away.
1	Two	two	NUM	CD	NumForm=Word|NumType=Card	3	nummod	_	_
2	black	black	ADJ	JJ	Degree=Pos	3	amod	_	_
3	holes	hole	NOUN	NNS	Number=Plur	4	nsubj	_	_
4	crash	crash	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	billion	billion	NUM	CD	NumForm=Word|NumType=Card	8	nummod	_	_
7	light	light	NOUN	NN	Number=Sing	8	compound	_	_
8	years	year	NOUN	NNS	Number=Plur	9	obl:unmarked	_	_
9	away	away	ADV	RB	_	4	advmod	_	SpaceAfter=No
10	.	.	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **crash** | present | Two black holes |  |  |  |  | away *property* | vn break-45.1 «NP.patient V»: agent=Patient |

<!-- .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.

<!-- .note -->
*Sentence 2:* What do we pick up on Earth?

```conllu
# sent_id = question:space:25-black-holes:t8:2
# text = What do we pick up on Earth?
1	What	what	PRON	WP	PronType=Int	4	obj	_	_
2	do	do	AUX	VBP	Mood=Ind|Number=Plur|Person=1|Tense=Pres|VerbForm=Fin	4	aux	_	_
3	we	we	PRON	PRP	Case=Nom|Number=Plur|Person=1|PronType=Prs	4	nsubj	_	_
4	pick	pick	VERB	VB	VerbForm=Inf	0	root	_	_
5	up	up	ADP	RP	_	4	compound:prt	_	_
6	on	on	ADP	IN	_	7	case	_	_
7	Earth	Earth	PROPN	NNP	Number=Sing	4	obl	_	SpaceAfter=No
8	?	?	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **pick up** | present · do-support | we |  |  | Earth |  |  | vn discover-84-1 «NP V NP»: agent=Agent what=Topic |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
A bright flash that lights up the night sky for a whole week

```conllu
# sent_id = question:space:25-black-holes:t8:o1:1
# text = A bright flash that lights up the night sky for a whole week
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	bright	bright	ADJ	JJ	Degree=Pos	3	amod	_	_
3	flash	flash	NOUN	NN	Number=Sing	0	root	_	_
4	that	that	PRON	WDT	PronType=Rel	5	nsubj	_	_
5	lights	light	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	acl:relcl	_	_
6	up	up	ADP	RP	_	5	compound:prt	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
8	night	night	NOUN	NN	Number=Sing	9	compound	_	_
9	sky	sky	NOUN	NN	Number=Sing	5	obj	_	_
10	for	for	ADP	IN	_	13	case	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
12	whole	whole	ADJ	JJ	Degree=Pos	13	amod	_	_
13	week	week	NOUN	NN	Number=Sing	5	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **light up** | present | a bright flash | the night sky |  |  | week |  | vn preparing-26.3-1 «NP V NP»: agent=Agent sky=Product |

### Option 2 {#o2}

<!-- .ven lang=en -->
A loud bang heard by everyone across the whole of the Earth

```conllu
# sent_id = question:space:25-black-holes:t8:o2:1
# text = A loud bang heard by everyone across the whole of the Earth
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	loud	loud	ADJ	JJ	Degree=Pos	3	amod	_	_
3	bang	bang	NOUN	NN	Number=Sing	0	root	_	_
4	heard	hear	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	acl	_	_
5	by	by	ADP	IN	_	6	case	_	_
6	everyone	everyone	PRON	NN	Number=Sing|PronType=Tot	4	obl	_	_
7	across	across	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	whole	whole	ADJ	JJ	Degree=Pos	4	obl	_	_
10	of	of	ADP	IN	_	12	case	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	Earth	Earth	PROPN	NNP	Number=Sing	9	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **hear** | participle |  | a loud bang *not said here* |  | the whole |  | by everyone | vn see-30.1-1-1 «NP V PP.stimulus»: agent=Experiencer |

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Tiny ripples in space called gravitational waves

```conllu
# sent_id = question:space:25-black-holes:t8:o3:1
# text = Tiny ripples in space called gravitational waves
1	Tiny	tiny	ADJ	JJ	Degree=Pos	2	amod	_	_
2	ripples	ripple	NOUN	NNS	Number=Plur	0	root	_	_
3	in	in	ADP	IN	_	4	case	_	_
4	space	space	NOUN	NN	Number=Sing	2	nmod	_	_
5	called	call	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	2	acl	_	_
6	gravitational	gravitational	ADJ	JJ	Degree=Pos	7	amod	_	_
7	waves	wave	NOUN	NNS	Number=Plur	5	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **call** | participle | Tiny ripples in space *not said here* | gravitational waves |  |  |  |  | vn initiate\_communication-37.4.2-1 «NP V»: agent=Agent |

### Option 4 {#o4}

<!-- .ven lang=en -->
A strong earthquake that shakes the ground all round the Earth

```conllu
# sent_id = question:space:25-black-holes:t8:o4:1
# text = A strong earthquake that shakes the ground all round the Earth
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	strong	strong	ADJ	JJ	Degree=Pos	3	amod	_	_
3	earthquake	earthquake	NOUN	NN	Number=Sing	0	root	_	_
4	that	that	PRON	WDT	PronType=Rel	5	nsubj	_	_
5	shakes	shake	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	acl:relcl	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	ground	ground	NOUN	NN	Number=Sing	5	obj	_	_
8	all	all	ADV	RB	_	11	advmod	_	_
9	round	round	ADP	IN	_	11	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	Earth	Earth	PROPN	NNP	Number=Sing	5	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **shake** | present | a strong earthquake | the ground |  | the Earth |  |  | vn funnel-9.3-1-1 «NP V NP PP.trajectory»: agent=Agent ground=Theme round earth=Trajectory |

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**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License.

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- ← previous: [Black holes, test 7](https://md.mova.elamur.ai/free/en/corpora/questions/space/25-black-holes/t7/)
- next →: [Black holes, test 9](https://md.mova.elamur.ai/free/en/corpora/questions/space/25-black-holes/t9/)
- ↑ back to [Black holes](https://md.mova.elamur.ai/free/en/corpora/questions/space/25-black-holes/)