---
title: Ostriches can run at about 70 km per hour, faster than any other bir… — Myth check: do ostriches bury their heads in the… · tree and pragmatics
description: Ostriches can run at about 70 km per hour, faster than any other bird on land, with strides of about 4 to 5 metres. Who acts: Ostriches. A sentence of the lesson «Myth check: do ostriches bury their heads in the sand?» of the biology course of Mova's primary school with its dependency tree and the p
---

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# Myth check: do ostriches bury their heads in the sand?, sentence 7

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Ostriches can run at about 70 km per hour, faster than any other bird on land, with strides of about 4 to 5 metres.

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**Who acts:** Ostriches · **What happens:** run, stride · **To what, where:** 70 km, 4 metres

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This is a sentence of the lesson «Myth check: do ostriches bury their heads in the sand?» of the biology 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 (Ostriches), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:151-ostriches-and-heads-in-the-sand.lesson:7
# text = Ostriches can run at about 70 km per hour, faster than any other bird on land, with strides of about 4 to 5 metres.
# source = school lesson (ours)
# course = biology
# lesson = 151-ostriches-and-heads-in-the-sand.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, R8-pos-agree ×1
1	Ostriches	ostrich	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	can	can	AUX	MD	VerbForm=Fin	3	aux	_	_
3	run	run	VERB	VB	VerbForm=Inf	0	root	_	_
4	at	at	ADP	IN	_	7	case	_	_
5	about	about	ADV	RB	_	6	advmod	_	_
6	70	70	NUM	CD	NumForm=Digit|NumType=Card	7	nummod	_	_
7	km	km	NOUN	NNS	Number=Plur	3	obl	_	Agree=R8-pos-agree|Haiku=3:obl|HaikuPos=NOUN:NN:Number=Sing
8	per	per	ADP	IN	_	9	case	_	_
9	hour	hour	NOUN	NN	Number=Sing	7	nmod	_	_
10	,	,	PUNCT	,	_	11	punct	_	_
11	faster	fast	ADJ	JJR	Degree=Cmp	3	advmod	_	Agree=R7-rel-agree|Haiku=3:parataxis
12	than	than	ADP	IN	_	15	case	_	_
13	any	any	DET	DT	PronType=Ind	15	det	_	_
14	other	other	ADJ	JJ	Degree=Pos	15	amod	_	_
15	bird	bird	NOUN	NN	Number=Sing	11	obl	_	_
16	on	on	ADP	IN	_	17	case	_	_
17	land	land	NOUN	NN	Number=Sing	15	nmod	_	_
18	,	,	PUNCT	,	_	20	punct	_	_
19	with	with	ADP	IN	_	20	case	_	_
20	strides	stride	NOUN	NNS	Number=Plur	3	obl	_	_
21	of	of	ADP	IN	_	26	case	_	_
22	about	about	ADV	RB	_	23	advmod	_	_
23	4	4	NUM	CD	NumForm=Digit|NumType=Card	26	nummod	_	_
24	to	to	ADP	IN	_	25	case	_	_
25	5	5	NUM	CD	NumForm=Digit|NumType=Card	23	nmod	_	_
26	metres	metre	NOUN	NNS	Number=Plur	20	nmod	_	_
27	.	.	PUNCT	.	_	3	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **run** | can | Ostriches |  |  | 70 km per hour |  | with strides of 4 metres | vn run-51.3.2-2-1 «NP V PP.location»: agent=Theme at km=Trajectory |
| 2 | **stride** |  |  | 4 metres |  |  |  |  | nom stride «act transitive»: of=patient |

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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:biology:151-ostriches-and-heads-in-the-sand.lesson:7`.

**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, 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/).

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