Test 8 · ★ · Electric senses: electric eels, sharks, the platypus bill…

Why can an elephantnose fish find worms in a river so muddy that no one could see?

Mova's choice: option 4 · The right answer: option 4 · right ✓ · Who acts: elephantnose fish, one · What happens: find, see · To what, where: worms, river

This is test 8 · ★ of lesson 231 «Electric senses: electric eels, sharks, the platypus bill and charged bees» 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	6 find	advmod
2	can	can	AUX	VerbForm=Fin	6 find	aux
3	an	a	DET	Definite=Ind PronType=Art	5 fish	det
4	elephantnose	elephantnose	NOUN	Number=Sing	5 fish	compound
5	fish	fish	NOUN	Number=Sing	6 find	nsubj
6	find	find	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	12 muddy	advcl
7	worms	worm	NOUN	Number=Plur	6 find	obj
8	in	in	ADP	_	10 river	case
9	a	a	DET	Definite=Ind PronType=Art	10 river	det
10	river	river	NOUN	Number=Sing	6 find	obl
11	so	so	ADV	_	12 muddy	advmod
12	muddy	muddy	ADJ	Degree=Pos	root	root
13	that	that	SCONJ	_	17 see	mark
14	no	no	DET	PronType=Neg	15 one	det
15	one	one	NOUN	Number=Sing	17 see	nsubj
16	could	could	AUX	VerbForm=Fin	17 see	aux
17	see	see	VERB	VerbForm=Inf	12 muddy	advcl
18	?	?	PUNCT	_	12 muddy	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	find	can	a elephantnose fish	worms		a river			vn discover-84 «NP V NP»: agent=Agent worm=Topic
2	see	could	no one						vn comprehend-87.2-1-1 «NP V»: agent=Experiencer

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

It has extra big eyes

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	2 has	nsubj
2	has	have	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	extra	extra	ADJ	Degree=Pos	5 eyes	amod
4	big	big	ADJ	Degree=Pos	5 eyes	amod
5	eyes	eye	NOUN	Number=Plur	2 has	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	have	present	It	extra big eyes					vn birth-28.2-1 «NP V NP»: agent=Agent eye=Patient

Option 2

It follows the light of glow-worms

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	2 follows	nsubj
2	follows	follow	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	the	the	DET	Definite=Def PronType=Art	4 light	det
4	light	light	NOUN	Number=Sing	2 follows	obj
5	of	of	ADP	_	8 worms	case
6	glow	glow	NOUN	Number=Sing	8 worms	compound
7	-	-	PUNCT	_	6 glow	punct
8	worms	worm	NOUN	Number=Plur	4 light	nmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	follow	present	It	the light of glow worms					vn chase-51.6 «NP V NP»: agent=Agent light=Theme
2	light			glow worms					nom light «phenomenon transitive»: of=patient

Option 3

It only ever eats in clear water

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 eats	nsubj
2	only	only	ADV	_	4 eats	advmod
3	ever	ever	ADV	PronType=Ind	4 eats	advmod
4	eats	eat	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
5	in	in	ADP	_	7 water	case
6	clear	clear	ADJ	Degree=Pos	7 water	amod
7	water	water	NOUN	Number=Sing	4 eats	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	eat	present	It			clear water	ever		vn eat-39.1-1 «NP V»: agent=Agent

Option 4 · ← Mova's choice · ✓ the right answer

It feels changes in the electric field it makes around itself

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	2 feels	nsubj
2	feels	feel	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	changes	change	NOUN	Number=Plur	2 feels	obj
4	in	in	ADP	_	7 field	case
5	the	the	DET	Definite=Def PronType=Art	7 field	det
6	electric	electric	ADJ	Degree=Pos	7 field	amod
7	field	field	NOUN	Number=Sing	2 feels	obl
8	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	9 makes	nsubj
9	makes	make	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	2 feels	parataxis
10	around	around	ADP	_	11 itself	case
11	itself	itself	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs Reflex=Yes	9 makes	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	feel	present	It	changes		the electric field			vn hunt-35.1 «NP V NP PP.location»: agent=Agent change=Theme in field=Location
2	make	present	field					around field	vn build-26.1-1 «NP.material V NP»: agent=Material

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/231-electric-senses-eels-sharks-the-platypus-and-charged-bees/t8/