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Test 8 · The Amazon river: pink dolphins, flooded forest, giant fis…

A tour guide says «surfers ride the river here». How can that be?

Mova's choice: option 1 · The right answer: option 4 · wrong ✗ · Who acts: tour guide, surfers, that · What happens: say, ride, be · To what, where: river · Speech: someone speaks here

This is test 8 of lesson 155 «The Amazon river: pink dolphins, flooded forest, giant fish and piranhas» 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

Sentence 1: A tour guide says «surfers ride the river here».

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	A	a	DET	Definite=Ind PronType=Art	3 guide	det
2	tour	tour	NOUN	Number=Sing	3 guide	compound
3	guide	guide	NOUN	Number=Sing	4 says	nsubj
4	says	say	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
5	«	«	PUNCT	_	7 ride	punct
6	surfers	surfer	NOUN	Number=Plur	7 ride	nsubj
7	ride	ride	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	4 says	ccomp
8	the	the	DET	Definite=Def PronType=Art	9 river	det
9	river	river	NOUN	Number=Sing	7 ride	obj
10	here	here	ADV	PronType=Dem	7 ride	advmod
11	»	»	PUNCT	_	7 ride	punct
12	.	.	PUNCT	_	4 says	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	say speech: assert	present	a tour guide						vn say-37.7-1-1 «NP V that S»: agent=Agent clause=Topic
2	ride in a quote	present	surfers	the river		here			vn nonvehicle-51.4.2 «NP V NP»: agent=Agent river=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.

Sentence 2: How can that be?

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	How	how	ADV	PronType=Int	4 be	advmod
2	can	can	AUX	VerbForm=Fin	4 be	aux
3	that	that	PRON	PronType=Rel	4 be	nsubj
4	be	be	VERB	VerbForm=Inf	root	root
5	?	?	PUNCT	_	4 be	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	can	can	that						vn exist-47.1 «NP V»: agent=Theme

The options

Option 1 · ← Mova's choice

The river flows uphill at night

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	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
5	at	at	ADP	_	6 night	case
6	night	night	NOUN	Number=Sing	3 flows	obl

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

Option 2

Boats make the waves

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Boats	boat	NOUN	Number=Plur	2 make	nsubj
2	make	make	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
3	the	the	DET	Definite=Def PronType=Art	4 waves	det
4	waves	wave	NOUN	Number=Plur	2 make	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	make	present	Boats	the waves					vn build-26.1-1 «NP.material V NP»: agent=Material wave=Product

Option 3

It is a joke, because rivers never have any waves

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 joke	nsubj
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 joke	cop
3	a	a	DET	Definite=Ind PronType=Art	4 joke	det
4	joke	joke	NOUN	Number=Sing	root	root
5	,	,	PUNCT	_	9 have	punct
6	because	because	SCONJ	_	9 have	mark
7	rivers	river	NOUN	Number=Plur	9 have	nsubj
8	never	never	ADV	PronType=Neg	9 have	advmod
9	have	have	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	4 joke	parataxis
10	any	any	DET	PronType=Ind	11 waves	det
11	waves	wave	NOUN	Number=Plur	9 have	obj

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is a	present	It	a joke					tree rules
2	not have	present	rivers	any waves					vn birth-28.2-1 «NP V NP»: agent=Agent wave=Patient

Option 4 · ✓ the right answer

The pororoca tidal wave rolls up the river from the sea

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 pororoca	det
2	pororoca	pororoca	NOUN	Number=Sing	5 rolls	nsubj
3	tidal	tidal	ADJ	Degree=Pos	4 wave	amod
4	wave	wave	NOUN	Number=Sing	2 pororoca	conj
5	rolls	roll	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
6	up	up	ADP	_	5 rolls	compound:prt
7	the	the	DET	Definite=Def PronType=Art	8 river	det
8	river	river	NOUN	Number=Sing	5 rolls	obj
9	from	from	ADP	_	11 sea	case
10	the	the	DET	Definite=Def PronType=Art	11 sea	det
11	sea	sea	NOUN	Number=Sing	5 rolls	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	roll up	present	the pororoca and tidal wave	the river		the sea			vn run-51.3.2-2 «NP V NP PP.trajectory»: agent=Agent river=Theme from sea=Trajectory

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/155-the-amazon-river/t8/