Test 5 · The park pond through the year: ducks, coots, swans, drago…

Why is pond ice dangerous even when it looks thick?

Mova's choice: option 3 · The right answer: option 3 · right ✓ · Who acts: pond ice, it · What happens: be, look

This is test 5 of lesson 337 «The park pond through the year: ducks, coots, swans, dragonflies and ice» 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	Why	why	ADV	PronType=Int	5 dangerous	advmod
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	5 dangerous	cop
3	pond	pond	NOUN	Number=Sing	4 ice	compound
4	ice	ice	NOUN	Number=Sing	5 dangerous	nsubj
5	dangerous	dangerous	ADJ	Degree=Pos	9 looks	advcl
6	even	even	ADV	_	9 looks	advmod
7	when	when	SCONJ	_	9 looks	mark
8	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	9 looks	nsubj
9	looks	look	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
10	thick	thick	ADJ	Degree=Pos	9 looks	xcomp
11	?	?	PUNCT	_	9 looks	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	pond ice					dangerous property	tree rules
2	look	present	it					thick property	vn stimulus_subject-30.4 «NP V ADJ»: agent=Stimulus

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

Thick ice is always too slippery

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Thick	thick	ADJ	Degree=Pos	2 ice	amod
2	ice	ice	NOUN	Number=Sing	6 slippery	nsubj
3	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	6 slippery	cop
4	always	always	ADV	PronType=Tot	6 slippery	advmod
5	too	too	ADV	_	6 slippery	advmod
6	slippery	slippery	ADJ	Degree=Pos	root	root

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	Thick ice					always, slippery property	tree rules

Option 2

Ice melts the moment you step on it

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Ice	ice	NOUN	Number=Sing	2 melts	nsubj
2	melts	melt	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	the	the	DET	Definite=Def PronType=Art	4 moment	det
4	moment	moment	NOUN	Number=Sing	2 melts	obj
5	you	you	PRON	Case=Nom Person=2 PronType=Prs	6 step	nsubj
6	step	step	VERB	Mood=Ind Number=Sing Person=2 Tense=Pres VerbForm=Fin	4 moment	acl:relcl
7	on	on	ADP	_	8 it	case
8	it	it	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	6 step	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	melt	present	Ice				moment		vn other_cos-45.4-1 «NP.patient V»: agent=Patient
2	step	present	you	the moment not said here		Ice			tree rules

Option 3 · ← Mova's choice · ✓ the right answer

It can break suddenly in places you cannot see

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 break	nsubj
2	can	can	AUX	VerbForm=Fin	3 break	aux
3	break	break	VERB	VerbForm=Inf	root	root
4	suddenly	suddenly	ADV	_	3 break	advmod
5	in	in	ADP	_	6 places	case
6	places	place	NOUN	Number=Plur	3 break	obl
7	you	you	PRON	Case=Nom Person=2 PronType=Prs	10 see	nsubj
8	can	can	AUX	VerbForm=Fin	10 see	aux
9	not	not	PART	Polarity=Neg	10 see	advmod
10	see	see	VERB	VerbForm=Inf	6 places	acl:relcl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	break	can	It			places		suddenly property	vn appear-48.1.1 «NP V PP.location»: agent=Theme in place=Location
2	not see	can	you	places not said here					vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer place=Stimulus

Option 4

Ducks bite people on the ice

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Ducks	duck	NOUN	Number=Plur	2 bite	nsubj
2	bite	bite	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	people	people	NOUN	Number=Plur	2 bite	obj
4	on	on	ADP	_	6 ice	case
5	the	the	DET	Definite=Def PronType=Art	6 ice	det
6	ice	ice	NOUN	Number=Sing	2 bite	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	bite	present	Ducks	people		the ice			vn swat-18.2 «NP V NP PP.location»: agent=Agent people=Patient on ice=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/337-the-park-pond-through-the-year-ducks-coots-swans-dragonflies-and-ice/t5/