---
title: Ostriches lay their eggs in a shallow pit scraped in the ground and… — Myth check: do ostriches bury their heads in the… · tree and pragmatics
description: Ostriches lay their eggs in a shallow pit scraped in the ground and several times a day put their heads in to turn the eggs with their beaks, so the eggs warm evenly and the chick does not stick to the shell. Who acts: Ostriches, eggs, chick. A sentence of the lesson «Myth check: do ostriches bury t
---

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# Myth check: do ostriches bury their heads in the sand?, sentence 5

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Ostriches lay their eggs in a shallow pit scraped in the ground and several times a day put their heads in to turn the eggs with their beaks, so the eggs warm evenly and the chick does not stick to the shell.

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**Who acts:** Ostriches, eggs, chick · **What happens:** lay, scrape, put, turn, warm, not stick · **To what, where:** eggs, shallow pit, ground, heads

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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, eggs, chick), 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:5
# text = Ostriches lay their eggs in a shallow pit scraped in the ground and several times a day put their heads in to turn the eggs with their beaks, so the eggs warm evenly and the chick does not stick to the shell.
# 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
1	Ostriches	ostrich	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	lay	lay	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	4	nmod:poss	_	_
4	eggs	egg	NOUN	NNS	Number=Plur	2	obj	_	_
5	in	in	ADP	IN	_	8	case	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
7	shallow	shallow	ADJ	JJ	Degree=Pos	8	amod	_	_
8	pit	pit	NOUN	NN	Number=Sing	2	obl	_	_
9	scraped	scrape	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	8	acl	_	_
10	in	in	ADP	IN	_	12	case	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	ground	ground	NOUN	NN	Number=Sing	9	obl	_	_
13	and	and	CCONJ	CC	_	18	cc	_	_
14	several	several	ADJ	JJ	Degree=Pos	15	amod	_	_
15	times	time	NOUN	NNS	Number=Plur	18	obl:unmarked	_	_
16	a	a	DET	DT	Definite=Ind|PronType=Art	17	det	_	_
17	day	day	NOUN	NN	Number=Sing	15	nmod	_	_
18	put	put	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
19	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	20	nmod:poss	_	_
20	heads	head	NOUN	NNS	Number=Plur	18	obj	_	_
21	in	in	ADV	RB	_	18	advmod	_	Agree=R7-rel-agree|Haiku=18:compound:prt|HaikuPos=ADP:RP:_
22	to	to	PART	TO	_	23	mark	_	_
23	turn	turn	VERB	VB	VerbForm=Inf	18	advcl	_	_
24	the	the	DET	DT	Definite=Def|PronType=Art	25	det	_	_
25	eggs	egg	NOUN	NNS	Number=Plur	23	obj	_	_
26	with	with	ADP	IN	_	28	case	_	_
27	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	28	nmod:poss	_	_
28	beaks	beak	NOUN	NNS	Number=Plur	23	obl	_	_
29	,	,	PUNCT	,	_	33	punct	_	_
30	so	so	ADV	RB	_	33	advmod	_	_
31	the	the	DET	DT	Definite=Def|PronType=Art	32	det	_	_
32	eggs	egg	NOUN	NNS	Number=Plur	33	nsubj	_	_
33	warm	warm	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	advcl	_	_
34	evenly	evenly	ADV	RB	_	33	advmod	_	_
35	and	and	CCONJ	CC	_	40	cc	_	_
36	the	the	DET	DT	Definite=Def|PronType=Art	37	det	_	_
37	chick	chick	NOUN	NN	Number=Sing	40	nsubj	_	_
38	does	do	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	40	aux	_	_
39	not	not	PART	RB	Polarity=Neg	40	advmod	_	_
40	stick	stick	VERB	VB	VerbForm=Inf	33	conj	_	_
41	to	to	ADP	IN	_	43	case	_	_
42	the	the	DET	DT	Definite=Def|PronType=Art	43	det	_	_
43	shell	shell	NOUN	NN	Number=Sing	40	obl	_	_
44	.	.	PUNCT	.	_	2	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 | **lay** | present | Ostriches | feathers's eggs |  | a shallow pit |  |  | vn put\_spatial-9.2 «NP V NP PP.destination»: agent=Agent egg=Theme in pit=Destination |
| 2 | **scrape** | participle |  | a shallow pit *not said here* |  | the ground |  |  | vn cut-21.1-1 «NP V ADVP-Middle»: agent=Patient |
| 3 | **put** | present | Ostriches *not said here* | feathers's heads |  |  | time |  | vn invest-13.5.4-1 «NP V PP»: agent=Agent head=Goal |
| 4 | **turn** | to-infinitive | Ostriches *not said here* | the eggs |  |  |  | with feathers's beaks | vn roll-51.3.1 «NP V NP.theme»: agent=Agent egg=Theme |
| 5 | **warm** | present | the eggs |  |  |  |  | evenly *property* | vn other\_cos-45.4 «NP.patient V»: agent=Patient |
| 6 | **not** **stick** | present · do-support | the chick |  |  |  |  | to the shell | vn shake-22.3-2 «NP V NP PP»: agent=Agent to shell=Co-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:5`.

**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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