Test 5 · The great rivers

What would happen if a big river kept building up silt in its bed?

Mova's choice: option 1 · The right answer: option 3 · wrong ✗ · Who acts: big river · What happens: happen, keep, build up · To what, where: silt, bed

This is test 5 of lesson 16 «The great rivers» of the geography 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	What	what	PRON	PronType=Int	3 happen	nsubj
2	would	would	AUX	VerbForm=Fin	3 happen	aux
3	happen	happen	VERB	VerbForm=Inf	root	root
4	if	if	SCONJ	_	8 kept	mark
5	a	a	DET	Definite=Ind PronType=Art	7 river	det
6	big	big	ADJ	Degree=Pos	7 river	amod
7	river	river	NOUN	Number=Sing	8 kept	nsubj
8	kept	keep	VERB	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	3 happen	advcl
9	building	build	VERB	VerbForm=Ger	8 kept	xcomp
10	up	up	ADP	_	9 building	compound:prt
11	silt	silt	NOUN	Number=Sing	9 building	obj
12	in	in	ADP	_	14 bed	case
13	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	14 bed	nmod:poss
14	bed	bed	NOUN	Number=Sing	9 building	obl
15	?	?	PUNCT	_	3 happen	punct

#	verb	tense, mood	who	what, whom	where	roles by
1	happen	would				vn occur-48.3-1 «NP V»: agent=Theme
2	keep a condition, not said to happen	past	a big river			tree rules
3	build up	gerund	a big river not said here	silt	river's bed	vn caused_calibratable_cos-45.6.2-1 «NP V NP.patient»: agent=Causer silt=Patient

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 river would get deeper and calmer

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 get	nsubj
3	would	would	AUX	VerbForm=Fin	4 get	aux
4	get	get	VERB	VerbForm=Inf	root	root
5	deeper	deep	ADJ	Degree=Cmp	4 get	xcomp
6	and	and	CCONJ	_	7 calmer	cc
7	calmer	calm	ADJ	Degree=Cmp	5 deeper	conj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	get	would	the river					deep property	vn comprehend-87.2-1 «NP V S_ING»: agent=Experiencer

Option 2

The river would turn into a lake at once

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 turn	nsubj
3	would	would	AUX	VerbForm=Fin	4 turn	aux
4	turn	turn	VERB	VerbForm=Inf	root	root
5	into	into	ADP	_	7 lake	case
6	a	a	DET	Definite=Ind PronType=Art	7 lake	det
7	lake	lake	NOUN	Number=Sing	4 turn	obl
8	at	at	ADP	_	9 once	case
9	once	once	ADV	NumForm=Word NumType=Mult	4 turn	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	turn	would	the river			a lake			vn roll-51.3.1 «NP.theme V PP.source PP.trajectory PP.destination»: agent=Theme into lake=Source at once=Trajectory

Option 3 · ✓ the right answer

The river would rise higher and flood or change course more easily

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 rise	nsubj
3	would	would	AUX	VerbForm=Fin	4 rise	aux
4	rise	rise	VERB	VerbForm=Inf	root	root
5	higher	high	ADV	Degree=Cmp	4 rise	advmod
6	and	and	CCONJ	_	7 flood	cc
7	flood	flood	VERB	VerbForm=Inf	4 rise	conj
8	or	or	CCONJ	_	9 change	cc
9	change	change	VERB	VerbForm=Inf	4 rise	conj
10	course	course	NOUN	Number=Sing	9 change	obj
11	more	more	ADV	Degree=Cmp	12 easily	advmod
12	easily	easily	ADV	_	9 change	advmod

#	verb	tense, mood	who	what, whom	other	roles by
1	rise	would	the river		high property	vn assuming_position-50 «NP V»: agent=Agent
2	flood	infinitive	the river not said here			vn other_cos-45.4 «NP.patient V»: agent=Patient
3	change	infinitive	the river not said here	course	easily property	vn dress-41.1.1-1-1 «NP V NP»: agent=Agent course=Patient

Option 4

Nothing at all would change, because the silt would always wash out to sea

The tree, 14 words

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Nothing	nothing	PRON	Number=Sing PronType=Neg	5 change	nsubj
2	at	at	ADP	_	3 all	case
3	all	all	DET	PronType=Tot	1 Nothing	nmod
4	would	would	AUX	VerbForm=Fin	5 change	aux
5	change	change	VERB	VerbForm=Inf	root	root
6	,	,	PUNCT	_	12 wash	punct
7	because	because	SCONJ	_	12 wash	mark
8	the	the	DET	Definite=Def PronType=Art	9 silt	det
9	silt	silt	NOUN	Number=Sing	12 wash	nsubj
10	would	would	AUX	VerbForm=Fin	12 wash	aux
11	always	always	ADV	PronType=Tot	12 wash	advmod
12	wash	wash	VERB	VerbForm=Inf	5 change	conj
13	out	out	ADP	_	12 wash	compound:prt
14	to	to	ADP	_	15 sea	case
15	sea	sea	NOUN	Number=Sing	12 wash	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	change	would	Nothing						vn dress-41.1.1-1-1 «NP V»: agent=Agent
2	wash out	would	the silt					to sea; always property	vn floss-41.2.1 «NP V»: agent=Agent

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/geography/16-the-great-rivers/t5/