---
title: Astronauts say the Great Wall of China is very hard or impossible to… — "How do you know?" · tree and pragmatics
description: Astronauts say the Great Wall of China is very hard or impossible to see from space with bare eyes, because it is long but narrow. Who acts: Astronauts, Great Wall, Wall. A sentence of the lesson «"How do you know?"» of the world course of Mova's primary school with its dependency tree and the pragm
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/world/186-how-do-you-know/10/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [World](https://md.mova.elamur.ai/free/en/corpora/school/world/) / ["How do you know?"](https://md.mova.elamur.ai/free/en/corpora/school/world/186-how-do-you-know/) / 10

# "How do you know?", sentence 10

<!-- .ven lang=en -->
Astronauts say the Great Wall of China is very hard or impossible to see from space with bare eyes, because it is long but narrow.

<!-- .vintro -->
**Who acts:** Astronauts, Great Wall, Wall · **What happens:** say, be, see · **To what, where:** space · **Speech:** someone speaks here

<!-- .vabout -->
This is a sentence of the lesson «"How do you know?"» of the world 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 (Astronauts, Great Wall, Wall), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:186-how-do-you-know.lesson:10
# text = Astronauts say the Great Wall of China is very hard or impossible to see from space with bare eyes, because it is long but narrow.
# source = school lesson (ours)
# course = world
# lesson = 186-how-do-you-know.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): no change
1	Astronauts	astronaut	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	say	say	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	Great	Great	ADJ	NNP	Degree=Pos	5	amod	_	_
5	Wall	Wall	PROPN	NNP	Number=Sing	10	nsubj	_	_
6	of	of	ADP	IN	_	7	case	_	_
7	China	China	PROPN	NNP	Number=Sing	5	nmod	_	_
8	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	10	cop	_	_
9	very	very	ADV	RB	_	10	advmod	_	_
10	hard	hard	ADJ	JJ	Degree=Pos	2	ccomp	_	_
11	or	or	CCONJ	CC	_	12	cc	_	_
12	impossible	impossible	ADJ	JJ	Degree=Pos	10	conj	_	_
13	to	to	PART	TO	_	14	mark	_	_
14	see	see	VERB	VB	VerbForm=Inf	12	xcomp	_	_
15	from	from	ADP	IN	_	16	case	_	_
16	space	space	NOUN	NN	Number=Sing	14	obl	_	_
17	with	with	ADP	IN	_	19	case	_	_
18	bare	bare	ADJ	JJ	Degree=Pos	19	amod	_	_
19	eyes	eye	NOUN	NNS	Number=Plur	14	obl	_	_
20	,	,	PUNCT	,	_	24	punct	_	_
21	because	because	SCONJ	IN	_	24	mark	_	_
22	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	24	nsubj	_	_
23	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	24	cop	_	_
24	long	long	ADJ	JJ	Degree=Pos	10	advcl	_	_
25	but	but	CCONJ	CC	_	26	cc	_	_
26	narrow	narrow	ADJ	JJ	Degree=Pos	24	conj	_	_
27	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **say** *speech: assert* | present | Astronauts |  |  |  |  |  | vn say-37.7-1-1 «NP V that S»: agent=Agent |
| 2 | **is** | present | the Great Wall of China |  |  |  |  | hard *property* | tree rules |
| 3 | **be** |  | the Great Wall of China *not said here* |  |  |  |  |  | tree rules |
| 4 | **see** | to-infinitive | the Great Wall of China *not said here* |  |  | space |  | with bare eyes | vn comprehend-87.2-1-1 «NP V»: agent=Experiencer |
| 5 | **is** | present | Wall |  |  |  |  | long *property* | tree rules |
| 6 | **be** |  | Wall *not said here* |  |  |  |  |  | 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.

<!-- div src -->

**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:world:186-how-do-you-know.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): no change. **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 -->

<!-- pn -->
- ← previous: ["How do you know?", 9](https://md.mova.elamur.ai/free/en/corpora/school/world/186-how-do-you-know/9/)
- next →: ["How do you know?", 11](https://md.mova.elamur.ai/free/en/corpora/school/world/186-how-do-you-know/11/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/world/186-how-do-you-know/)