---
title: Kai: "If they buried their heads, they'd suffocate. There'd be no os… — "How do you know?" · tree and pragmatics
description: Kai: "If they buried their heads, they'd suffocate. There'd be no ostriches left. Think, bro." What is Kai doing? Test 10 of lesson 186 «"How do you know?"» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was rig
---

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# Test 10 · "How do you know?"

<!-- .ven lang=en -->
Kai: "If they buried their heads, they'd suffocate. There'd be no ostriches left. Think, bro." What is Kai doing?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 3 · right ✓ · **Who acts:** they, Kai, ostriches, you · **What happens:** bury, suffocate, be, leave, think, do · **To what, where:** heads, ostriches, bro

<!-- .vabout -->
This is test 10 of lesson 186 «"How do you know?"» of the world 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/world/186-how-do-you-know/#t10).

## The question {#question}

<!-- .note -->
*Sentence 1:* Kai: "If they buried their heads, they'd suffocate.

```conllu
# sent_id = question:world:186-how-do-you-know:t10:1
# text = Kai: "If they buried their heads, they'd suffocate.
1	Kai	Kai	PROPN	NNP	Number=Sing	12	nsubj	_	SpaceAfter=No
2	:	:	PUNCT	:	_	12	punct	_	_
3	"	"	PUNCT	``	_	12	punct	_	SpaceAfter=No
4	If	if	SCONJ	IN	_	6	mark	_	_
5	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	6	nsubj	_	_
6	buried	bury	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	12	advcl	_	_
7	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	8	nmod:poss	_	_
8	heads	head	NOUN	NNS	Number=Plur	6	obj	_	SpaceAfter=No
9	,	,	PUNCT	,	_	6	punct	_	_
10	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	12	nsubj	_	SpaceAfter=No
11	'd	would	AUX	MD	VerbForm=Fin	12	aux	_	_
12	suffocate	suffocate	VERB	VB	VerbForm=Inf	0	root	_	SpaceAfter=No
13	.	.	PUNCT	.	_	12	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **bury** *a condition, not said to happen, in a quote* | past | they | their heads |  |  |  |  | vn put-9.1-1 «NP V NP»: agent=Agent head=Theme |
| 2 | **suffocate** *in a quote* | would | Kai |  |  |  |  |  | vn suffocate-40.7 «NP.theme 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:* There'd be no ostriches left.

```conllu
# sent_id = question:world:186-how-do-you-know:t10:2
# text = There'd be no ostriches left.
1	There	there	PRON	EX	PronType=Dem	3	expl	_	SpaceAfter=No
2	'd	would	AUX	MD	VerbForm=Fin	3	aux	_	_
3	be	be	VERB	VB	VerbForm=Inf	0	root	_	_
4	no	no	DET	DT	PronType=Neg	5	det	_	_
5	ostriches	ostrich	NOUN	NNS	Number=Plur	3	nsubj	_	_
6	left	leave	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	acl	_	SpaceAfter=No
7	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **be** | would | no ostriches |  |  | there |  |  | vn exist-47.1 «NP V»: agent=Theme |
| 2 | **leave** | participle |  | no ostriches *not said here* |  |  |  |  | vn escape-51.1-1-1 «NP V»: agent=Theme |

<!-- .note -->
*Sentence 3:* Think, bro."

```conllu
# sent_id = question:world:186-how-do-you-know:t10:3
# text = Think, bro."
1	Think	think	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	SpaceAfter=No
2	,	,	PUNCT	,	_	3	punct	_	_
3	bro	bro	NOUN	NN	Number=Sing	1	obj	_	SpaceAfter=No
4	.	.	PUNCT	.	_	1	punct	_	SpaceAfter=No
5	"	"	PUNCT	''	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **think** *speech: other* | imperative | you *not said here* | bro |  |  |  |  | vn wish-62 «NP V NP»: agent=Pivot bro=Theme |

<!-- .note -->
*Sentence 4:* What is Kai doing?

```conllu
# sent_id = question:world:186-how-do-you-know:t10:4
# text = What is Kai doing?
1	What	what	PRON	WP	PronType=Int	4	obj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux	_	_
3	Kai	Kai	PROPN	NNP	Number=Sing	4	nsubj	_	_
4	doing	do	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	SpaceAfter=No
5	?	?	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **do** | present · progressive | Kai |  |  |  |  |  | vn act-114-1 «NP V NP»: agent=Agent what=Eventuality |

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
Attacking the person who said it

```conllu
# sent_id = question:world:186-how-do-you-know:t10:o1:1
# text = Attacking the person who said it
1	Attacking	attack	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	person	person	NOUN	NN	Number=Sing	1	obj	_	_
4	who	who	PRON	WP	PronType=Rel	5	nsubj	_	_
5	said	say	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	3	acl:relcl	_	_
6	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	5	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **attack** | gerund |  | the person |  |  |  |  | vn attack-60.1-1 «NP V NP»: agent=Agent person=Patient |
| 2 | **say** *speech: assert* | past | the person | person |  |  |  |  | vn say-37.7-1-1 «NP V NP.topic»: agent=Agent it=Topic |

### Option 2 {#o2}

<!-- .ven lang=en -->
Saying everyone believes it

```conllu
# sent_id = question:world:186-how-do-you-know:t10:o2:1
# text = Saying everyone believes it
1	Saying	say	VERB	VBG	Tense=Pres|VerbForm=Part	3	csubj	_	_
2	everyone	everyone	PRON	NN	Number=Sing|PronType=Tot	1	obj	_	_
3	believes	believe	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **say** *speech: assert* | gerund |  | everyone |  |  |  |  | vn say-37.7-1-1 «NP V NP.topic»: agent=Agent everyone=Topic |
| 2 | **believe** | present | Saying | it |  |  |  |  | vn admire-31.2 «NP V NP»: agent=Experiencer it=Stimulus |

### Option 3 · ← Mova's choice · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Checking what would follow if the claim were true

```conllu
# sent_id = question:world:186-how-do-you-know:t10:o3:1
# text = Checking what would follow if the claim were true
1	Checking	check	VERB	VBG	Tense=Pres|VerbForm=Part	4	nsubj	_	_
2	what	what	PRON	WP	PronType=Int	4	obj	_	_
3	would	would	AUX	MD	VerbForm=Fin	4	aux	_	_
4	follow	follow	VERB	VB	VerbForm=Inf	0	root	_	_
5	if	if	SCONJ	IN	_	9	mark	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	claim	claim	NOUN	NN	Number=Sing	9	nsubj	_	_
8	were	be	AUX	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	9	cop	_	_
9	true	true	ADJ	JJ	Degree=Pos	4	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **check** | gerund |  |  |  |  |  |  | vn assessment-34.1 «NP V NP»: agent=Agent |
| 2 | **follow** | would |  |  |  |  |  |  | vn chase-51.6 «NP V NP»: agent=Agent what=Theme |
| 3 | **is** *a condition, not said to happen* | past | the claim |  |  |  |  | true *property* | tree rules |

### Option 4 {#o4}

<!-- .ven lang=en -->
Quoting a famous person

```conllu
# sent_id = question:world:186-how-do-you-know:t10:o4:1
# text = Quoting a famous person
1	Quoting	quote	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
2	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
3	famous	famous	ADJ	JJ	Degree=Pos	4	amod	_	_
4	person	person	NOUN	NN	Number=Sing	1	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **quote** *speech: other* | gerund |  | a famous person |  |  |  |  | vn transfer\_mesg-37.1.1-1 «NP V NP»: agent=Agent person=Topic |

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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.

<!-- /div -->

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