Test 2 · Myth check: do ostriches bury their heads in the sand?

«my uncle saw an ostrich with its head in the ground at the safari park, so the myth's real innit» What is right?

Mova's choice: option 1 · The right answer: option 1 · right ✓ · Who acts: uncle · What happens: see, be · To what, where: ostrich, ground · Speech: someone speaks here

This is test 2 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

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	«	«	PUNCT	_	4 saw	punct
2	my	my	PRON	Case=Gen Number=Sing Person=1 Poss=Yes PronType=Prs	3 uncle	nmod:poss
3	uncle	uncle	NOUN	Number=Sing	4 saw	nsubj
4	saw	see	VERB	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	root	root
5	an	a	DET	Definite=Ind PronType=Art	6 ostrich	det
6	ostrich	ostrich	NOUN	Number=Sing	4 saw	obj
7	with	with	ADP	_	9 head	case
8	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	9 head	nmod:poss
9	head	head	NOUN	Number=Sing	6 ostrich	nmod
10	in	in	ADP	_	12 ground	case
11	the	the	DET	Definite=Def PronType=Art	12 ground	det
12	ground	ground	NOUN	Number=Sing	4 saw	obl
13	at	at	ADP	_	16 park	case
14	the	the	DET	Definite=Def PronType=Art	16 park	det
15	safari	safari	NOUN	Number=Sing	16 park	compound
16	park	park	NOUN	Number=Sing	12 ground	nmod
17	,	,	PUNCT	_	23 innit	punct
18	so	so	ADV	_	23 innit	advmod
19	the	the	DET	Definite=Def PronType=Art	20 myth	det
20	myth	myth	NOUN	Number=Sing	23 innit	nmod:poss
21	's	's	PART	_	20 myth	case
22	real	real	ADJ	Degree=Pos	23 innit	amod
23	innit	innit	NOUN	Number=Sing	4 saw	parataxis
24	»	»	PUNCT	_	23 innit	punct
25	What	what	PRON	PronType=Int	27 right	nsubj
26	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	27 right	cop
27	right	right	ADJ	Degree=Pos	4 saw	ccomp
28	?	?	PUNCT	_	4 saw	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	see in a quote	past	my uncle	a ostrich		the ground at the safari park		with ostrich's head	vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer ostrich=Stimulus
2	is	present						right property	tree rules

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.

The options

Option 1 · ← Mova's choice · ✓ the right answer

It was probably turning its eggs in the nest pit, which looks like that from far away

The tree, 17 words

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	It	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	4 turning	nsubj
2	was	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	4 turning	aux
3	probably	probably	ADV	_	4 turning	advmod
4	turning	turn	VERB	Tense=Pres VerbForm=Part	root	root
5	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	6 eggs	nmod:poss
6	eggs	egg	NOUN	Number=Plur	4 turning	obj
7	in	in	ADP	_	10 pit	case
8	the	the	DET	Definite=Def PronType=Art	10 pit	det
9	nest	nest	NOUN	Number=Sing	10 pit	compound
10	pit	pit	NOUN	Number=Sing	4 turning	obl
11	,	,	PUNCT	_	13 looks	punct
12	which	which	PRON	PronType=Rel	13 looks	nsubj
13	looks	look	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	10 pit	acl:relcl
14	like	like	ADP	_	15 that	case
15	that	that	PRON	Number=Sing PronType=Dem	13 looks	obl
16	from	from	ADP	_	17 far	case
17	far	far	ADV	Degree=Pos	13 looks	advmod
18	away	away	ADV	_	17 far	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	turn	past · progressive	It	its eggs				in the nest pit; probably property	vn crane-40.3.2 «NP V NP PP.recipient PP.theme»: agent=Agent egg=Patient in pit=Topic
2	look	present	the nest pit					like the nest pit; far property	vn stimulus_subject-30.4 «NP V PP.attribute»: agent=Stimulus

Option 2

Yes, so the myth is true

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Yes	yes	INTJ	Polarity=Pos	7 true	discourse
2	,	,	PUNCT	_	1 Yes	punct
3	so	so	ADV	_	7 true	advmod
4	the	the	DET	Definite=Def PronType=Art	5 myth	det
5	myth	myth	NOUN	Number=Sing	7 true	nsubj
6	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	7 true	cop
7	true	true	ADJ	Degree=Pos	root	root

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	the myth					true property	tree rules

Option 3

It was eating the sand for lunch, because ostriches need sand to make their eggshells

The tree, 15 words

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	It	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	3 eating	nsubj
2	was	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	3 eating	aux
3	eating	eat	VERB	Tense=Pres VerbForm=Part	root	root
4	the	the	DET	Definite=Def PronType=Art	5 sand	det
5	sand	sand	NOUN	Number=Sing	3 eating	obj
6	for	for	ADP	_	7 lunch	case
7	lunch	lunch	NOUN	Number=Sing	3 eating	obl
8	,	,	PUNCT	_	11 need	punct
9	because	because	SCONJ	_	11 need	mark
10	ostriches	ostrich	NOUN	Number=Plur	11 need	nsubj
11	need	need	VERB	Mood=Ind Number=Plur Person=1 Tense=Pres VerbForm=Fin	3 eating	conj
12	sand	sand	NOUN	Number=Sing	11 need	obj
13	to	to	PART	_	14 make	mark
14	make	make	VERB	VerbForm=Inf	11 need	advcl
15	their	their	PRON	Case=Gen Number=Plur Person=3 Poss=Yes PronType=Prs	16 eggshells	nmod:poss
16	eggshells	eggshell	NOUN	Number=Plur	14 make	obj

#	verb	tense, mood	who	what, whom	other	roles by
1	eat	past · progressive	It	the sand	for lunch	vn eat-39.1-1 «NP V NP»: agent=Agent sand=Patient
2	need	present	ostriches	sand		vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot sand=Theme
3	make	to-infinitive	ostriches not said here	ostriches's eggshells		vn build-26.1-1 «NP.asset V NP»: agent=Asset eggshell=Product

Option 4

It was hiding from your uncle

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	It	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	3 hiding	nsubj
2	was	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	3 hiding	aux
3	hiding	hide	VERB	Tense=Pres VerbForm=Part	root	root
4	from	from	ADP	_	6 uncle	case
5	your	your	PRON	Case=Gen Person=2 Poss=Yes PronType=Prs	6 uncle	nmod:poss
6	uncle	uncle	NOUN	Number=Sing	3 hiding	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	hide	past · progressive	It					from your uncle	vn concealment-16-1 «NP V PP.beneficiary»: agent=Agent from uncle=Beneficiary

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/t2/