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Test 7 · Myth check: do ostriches bury their heads in the sand?

A lion creeps towards a resting ostrich on the open plain. What will the ostrich most likely do?

Mova's choice: option 2 · The right answer: option 3 · wrong ✗ · Who acts: lion, ostrich · What happens: creep, rest, do · To what, where: open plain

This is test 7 of lesson 151 «Myth check: do ostriches bury their heads in the sand?» of the biology 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.

The question

Sentence 1: A lion creeps towards a resting ostrich on the open plain.

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	A	a	DET	Definite=Ind PronType=Art	2 lion	det
2	lion	lion	NOUN	Number=Sing	3 creeps	nsubj
3	creeps	creep	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	towards	towards	ADP	_	7 ostrich	case
5	a	a	DET	Definite=Ind PronType=Art	7 ostrich	det
6	resting	rest	VERB	Tense=Pres VerbForm=Part	7 ostrich	amod
7	ostrich	ostrich	NOUN	Number=Sing	3 creeps	obl
8	on	on	ADP	_	11 plain	case
9	the	the	DET	Definite=Def PronType=Art	11 plain	det
10	open	open	ADJ	Degree=Pos	11 plain	amod
11	plain	plain	NOUN	Number=Sing	3 creeps	obl
12	.	.	PUNCT	_	3 creeps	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	creep	present	a lion			the open plain		towards a resting ostrich	vn run-51.3.2 «NP V PP.location»: agent=Theme towards ostrich=Destination
2	rest	gerund							vn spatial_configuration-47.6-1 «NP V»: agent=Theme

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.

Sentence 2: What will the ostrich most likely do?

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	What	what	PRON	PronType=Int	7 do	obj
2	will	will	AUX	VerbForm=Fin	7 do	aux
3	the	the	DET	Definite=Def PronType=Art	4 ostrich	det
4	ostrich	ostrich	NOUN	Number=Sing	7 do	nsubj
5	most	most	ADV	Degree=Sup	6 likely	advmod
6	likely	likely	ADV	_	7 do	advmod
7	do	do	VERB	VerbForm=Inf	root	root
8	?	?	PUNCT	_	7 do	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	do	future	the ostrich					likely property	vn act-114-1 «NP V NP»: agent=Agent what=Eventuality

The options

Option 1

Fly straight up into the nearest tall tree and wait there

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Fly	fly	VERB	Mood=Imp VerbForm=Fin	root	root
2	straight	straight	ADV	_	3 up	advmod
3	up	up	ADV	_	1 Fly	advmod
4	into	into	ADP	_	8 tree	case
5	the	the	DET	Definite=Def PronType=Art	8 tree	det
6	nearest	near	ADJ	Degree=Sup	8 tree	amod
7	tall	tall	ADJ	Degree=Pos	8 tree	amod
8	tree	tree	NOUN	Number=Sing	1 Fly	obl
9	and	and	CCONJ	_	10 wait	cc
10	wait	wait	VERB	Mood=Imp VerbForm=Fin	1 Fly	conj
11	there	there	ADV	PronType=Dem	10 wait	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	fly	imperative	you not said here					into the nearest tall tree result	vn run-51.3.2-2-1 «NP V PP.result»: agent=Theme into tree=Result
2	wait	infinitive	you not said here			there			vn exist-47.1 «NP V»: agent=Theme

Option 2 · ← Mova's choice

Bury its head and wait

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Bury	bury	VERB	Mood=Imp VerbForm=Fin	root	root
2	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	3 head	nmod:poss
3	head	head	NOUN	Number=Sing	1 Bury	obj
4	and	and	CCONJ	_	5 wait	cc
5	wait	wait	VERB	Mood=Imp VerbForm=Fin	1 Bury	conj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	bury	imperative	you not said here	its head					vn put-9.1-1 «NP V NP»: agent=Agent head=Theme
2	wait	infinitive	you not said here						vn exist-47.1 «NP V»: agent=Theme

Option 3 · ✓ the right answer

Spot it with its huge eyes and sprint away

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Spot	spot	VERB	Mood=Imp VerbForm=Fin	root	root
2	it	it	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	1 Spot	obj
3	with	with	ADP	_	6 eyes	case
4	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	6 eyes	nmod:poss
5	huge	huge	ADJ	Degree=Pos	6 eyes	amod
6	eyes	eye	NOUN	Number=Plur	1 Spot	obl
7	and	and	CCONJ	_	8 sprint	cc
8	sprint	sprint	VERB	Mood=Imp VerbForm=Fin	1 Spot	conj
9	away	away	ADV	_	8 sprint	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	spot	imperative	you not said here	it				with its huge eyes	vn fill-9.8-1 «NP V NP PP.theme»: agent=Agent it=Destination with eye=Theme
2	sprint away	infinitive	you not said here					away property	vn run-51.3.2 «NP V»: agent=Theme

Option 4

Sit on the lion

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Sit	sit	VERB	Mood=Imp VerbForm=Fin	root	root
2	on	on	ADP	_	4 lion	case
3	the	the	DET	Definite=Def PronType=Art	4 lion	det
4	lion	lion	NOUN	Number=Sing	1 Sit	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	sit	imperative	you not said here					on the lion	vn assuming_position-50 «NP V PP.location»: agent=Agent on lion=Location

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.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/questions/biology/151-ostriches-and-heads-in-the-sand/t7/