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Test 3 · ★ · Exoplanets and the search for life

A telescope sees a star dim slightly every 3 days. What might be happening?

Mova's choice: option 4 · The right answer: option 3 · wrong ✗ · Who acts: telescope · What happens: see, happen · To what, where: star

This is test 3 · ★ of lesson 26 «Exoplanets and the search for life» of the space 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 telescope sees a star dim slightly every 3 days.

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	A	a	DET	Definite=Ind PronType=Art	2 telescope	det
2	telescope	telescope	NOUN	Number=Sing	3 sees	nsubj
3	sees	see	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	a	a	DET	Definite=Ind PronType=Art	5 star	det
5	star	star	NOUN	Number=Sing	3 sees	obj
6	dim	dim	ADJ	Degree=Pos	5 star	amod
7	slightly	slightly	ADV	_	10 days	advmod
8	every	every	DET	PronType=Tot	10 days	det
9	3	3	NUM	NumForm=Digit NumType=Card	10 days	nummod
10	days	day	NOUN	Number=Plur	3 sees	obl
11	.	.	PUNCT	_	3 sees	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	see	present	a telescope	a star			day		vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer star=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.

Sentence 2: What might be happening?

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	What	what	PRON	PronType=Int	4 happening	nsubj
2	might	might	AUX	VerbForm=Fin	4 happening	aux
3	be	be	AUX	VerbForm=Inf	4 happening	aux
4	happening	happen	VERB	Tense=Pres VerbForm=Part	root	root
5	?	?	PUNCT	_	4 happening	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	happen	might · progressive							vn occur-48.3-1 «NP V»: agent=Theme

The options

Option 1

The star is moving away from us and back again

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 star	det
2	star	star	NOUN	Number=Sing	4 moving	nsubj
3	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 moving	aux
4	moving	move	VERB	Tense=Pres VerbForm=Part	root	root
5	away	away	ADV	_	4 moving	advmod
6	from	from	ADP	_	7 us	case
7	us	we	PRON	Case=Acc Number=Plur Person=1 PronType=Prs	4 moving	obl
8	and	and	CCONJ	_	9 back	cc
9	back	back	ADV	_	7 us	conj
10	again	again	ADV	_	4 moving	advmod

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	move away	present · progressive	the star				again	from us; away property	vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme from we=Trajectory

Option 2

Clouds on Earth happen to pass over the telescope every 3 days

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Clouds	cloud	NOUN	Number=Plur	4 happen	nsubj
2	on	on	ADP	_	3 Earth	case
3	Earth	Earth	PROPN	Number=Sing	1 Clouds	nmod
4	happen	happen	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
5	to	to	PART	_	6 pass	mark
6	pass	pass	VERB	VerbForm=Inf	4 happen	advcl
7	over	over	ADP	_	9 telescope	case
8	the	the	DET	Definite=Def PronType=Art	9 telescope	det
9	telescope	telescope	NOUN	Number=Sing	6 pass	obl
10	every	every	DET	PronType=Tot	12 days	det
11	3	3	NUM	NumForm=Digit NumType=Card	12 days	nummod
12	days	day	NOUN	Number=Plur	6 pass	obl:unmarked

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	happen	present	Clouds on Earth						vn occur-48.3-1 «NP V»: agent=Theme
2	pass	to-infinitive	Clouds on Earth not said here			the telescope	day		vn occur-48.3-1 «NP V PP»: agent=Theme over telescope=Location

Option 3 · ✓ the right answer

A planet passes in front of it every 3 days

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	A	a	DET	Definite=Ind PronType=Art	2 planet	det
2	planet	planet	NOUN	Number=Sing	3 passes	nsubj
3	passes	pass	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	in	in	ADP	_	5 front	case
5	front	front	NOUN	Number=Sing	3 passes	obl
6	of	of	ADP	_	7 it	case
7	it	it	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	5 front	nmod
8	every	every	DET	PronType=Tot	10 days	det
9	3	3	NUM	NumForm=Digit NumType=Card	10 days	nummod
10	days	day	NOUN	Number=Plur	3 passes	obl:unmarked

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	pass	present	a planet			front of front	day		vn occur-48.3-1 «NP V PP»: agent=Theme in front=Location

Option 4 · ← Mova's choice

The star switches itself off for a short rest every 3 days

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	The	the	DET	Definite=Def PronType=Art	2 star	det
2	star	star	NOUN	Number=Sing	3 switches	nsubj
3	switches	switch	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	itself	itself	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs Reflex=Yes	3 switches	obj
5	off	off	ADP	_	3 switches	compound:prt
6	for	for	ADP	_	9 rest	case
7	a	a	DET	Definite=Ind PronType=Art	9 rest	det
8	short	short	ADJ	Degree=Pos	9 rest	amod
9	rest	rest	NOUN	Number=Sing	3 switches	obl
10	every	every	DET	PronType=Tot	12 days	det
11	3	3	NUM	NumForm=Digit NumType=Card	12 days	nummod
12	days	day	NOUN	Number=Plur	3 switches	obl:unmarked

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	switch off	present	the star	star			day	for a short rest	vn convert-26.6.2-1-1 «NP V NP»: agent=Agent itself=Patient

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/space/26-exoplanets-and-the-search-for-life/t3/