Test 12 · The Congo river: tigerfish, the deepest river, lungfish an…

Why can scientists not reach the bottom of the deepest parts of the Congo with a pole?

Mova's choice: option 2 · The right answer: option 4 · wrong ✗ · Who acts: scientists · What happens: not reach · To what, where: bottom

This is test 12 of lesson 160 «The Congo river: tigerfish, the deepest river, lungfish and hidden birds» 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 reach	advmod
2	can	can	AUX	VerbForm=Fin	5 reach	aux
3	scientists	scientist	NOUN	Number=Plur	5 reach	nsubj
4	not	not	PART	Polarity=Neg	5 reach	advmod
5	reach	reach	VERB	VerbForm=Inf	root	root
6	the	the	DET	Definite=Def PronType=Art	7 bottom	det
7	bottom	bottom	NOUN	Number=Sing	5 reach	obj
8	of	of	ADP	_	11 parts	case
9	the	the	DET	Definite=Def PronType=Art	11 parts	det
10	deepest	deep	ADJ	Degree=Sup	11 parts	amod
11	parts	part	NOUN	Number=Plur	7 bottom	nmod
12	of	of	ADP	_	14 Congo	case
13	the	the	DET	Definite=Def PronType=Art	14 Congo	det
14	Congo	Congo	PROPN	Number=Sing	11 parts	nmod
15	with	with	ADP	_	17 pole	case
16	a	a	DET	Definite=Ind PronType=Art	17 pole	det
17	pole	pole	NOUN	Number=Sing	5 reach	obl
18	?	?	PUNCT	_	5 reach	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	not reach	can	scientists	the bottom of the deepest parts of the Congo				with a pole	vn body_motion-49.2-1-1 «NP V NP ADV»: agent=Agent bottom=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.

The options

Option 1

Tigerfish bite the poles

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Tigerfish	tigerfish	NOUN	Number=Plur	2 bite	nsubj
2	bite	bite	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	the	the	DET	Definite=Def PronType=Art	4 poles	det
4	poles	pole	NOUN	Number=Plur	2 bite	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	bite	present	Tigerfish	the poles					vn swat-18.2 «NP V NP»: agent=Agent pole=Patient

Option 2 · ← Mova's choice

The bottom of the river is made of soft mud that swallows the poles

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 bottom	det
2	bottom	bottom	NOUN	Number=Sing	7 made	nsubj:pass
3	of	of	ADP	_	5 river	case
4	the	the	DET	Definite=Def PronType=Art	5 river	det
5	river	river	NOUN	Number=Sing	2 bottom	nmod
6	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	7 made	aux:pass
7	made	make	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
8	of	of	ADP	_	10 mud	case
9	soft	soft	ADJ	Degree=Pos	10 mud	amod
10	mud	mud	NOUN	Number=Sing	7 made	obl
11	that	that	PRON	PronType=Rel	12 swallows	nsubj
12	swallows	swallow	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	10 mud	acl:relcl
13	the	the	DET	Definite=Def PronType=Art	14 poles	det
14	poles	pole	NOUN	Number=Plur	12 swallows	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	make	present · passive		the bottom of the river				of soft mud	vn build-26.1-1 «NP.asset V NP»: subject=Product
2	swallow	present	soft mud	the poles					vn gobble-39.3 «NP V NP»: agent=Agent pole=Patient

Option 3

The water flows uphill

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 water	det
2	water	water	NOUN	Number=Sing	3 flows	nsubj
3	flows	flow	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	uphill	uphill	ADV	_	3 flows	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	flow	present	the water					uphill property	vn appear-48.1.1 «NP V»: agent=Theme

Option 4 · ✓ the right answer

The river is more than two hundred metres deep there

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 river	det
2	river	river	NOUN	Number=Sing	4 more	nsubj
3	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 more	cop
4	more	more	ADJ	Degree=Cmp	7 hundred	advmod
5	than	than	ADP	_	4 more	fixed
6	two	two	NUM	NumForm=Word NumType=Card	7 hundred	compound
7	hundred	hundred	NUM	NumForm=Word NumType=Card	8 metres	nummod
8	metres	metre	NOUN	Number=Plur	root	root
9	deep	deep	ADV	_	10 there	advmod
10	there	there	ADV	PronType=Dem	8 metres	advmod

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

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/160-the-congo-river/t12/