Test 6 · ★ · Traffic lights, crossings and parked cars

Why do traffic lights for walkers in many US cities show a countdown?

Mova's choice: option 1 · The right answer: option 4 · wrong ✗ · Who acts: walkers · What happens: do, show · To what, where: traffic lights, countdown

This is test 6 · ★ of lesson 42 «Traffic lights, crossings and parked cars» of the everyday 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	2 do	advmod
2	do	do	VERB	Mood=Ind Number=Sing Person=2 Tense=Pres VerbForm=Fin	11 show	advcl
3	traffic	traffic	NOUN	Number=Sing	4 lights	compound
4	lights	light	NOUN	Number=Plur	2 do	obj
5	for	for	ADP	_	6 walkers	case
6	walkers	walker	NOUN	Number=Plur	11 show	nsubj
7	in	in	ADP	_	10 cities	case
8	many	many	ADJ	Degree=Pos	10 cities	amod
9	US	US	PROPN	Number=Sing	10 cities	compound
10	cities	city	NOUN	Number=Plur	6 walkers	nmod
11	show	show	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
12	a	a	DET	Definite=Ind PronType=Art	13 countdown	det
13	countdown	countdown	NOUN	Number=Sing	11 show	obj
14	?	?	PUNCT	_	11 show	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	do	present	walkers in many US cities not said here	traffic lights					vn act-114-1 «NP V NP»: agent=Agent light=Eventuality
2	show	present	walkers in many US cities	a countdown					vn transfer_mesg-37.1.1-1-1 «NP V NP.recipient»: agent=Agent countdown=Recipient

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

So you know when the bus is coming

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	So	so	ADV	_	3 know	advmod
2	you	you	PRON	Case=Nom Person=2 PronType=Prs	3 know	nsubj
3	know	know	VERB	Mood=Ind Number=Sing Person=2 Tense=Pres VerbForm=Fin	root	root
4	when	when	ADV	PronType=Int	8 coming	advmod
5	the	the	DET	Definite=Def PronType=Art	6 bus	det
6	bus	bus	NOUN	Number=Sing	8 coming	nsubj
7	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	8 coming	aux
8	coming	come	VERB	Tense=Pres VerbForm=Part	3 know	ccomp

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	know	present	you						vn comprehend-87.2-1-1-1 «NP V how S_INF»: agent=Experiencer clause=Stimulus
2	come	present · progressive	the bus						vn escape-51.1-1 «NP V»: agent=Theme

Option 2

So you can race the cars to the other side before they move off

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	So	so	ADV	_	4 race	advmod
2	you	you	PRON	Case=Nom Person=2 PronType=Prs	4 race	nsubj
3	can	can	AUX	VerbForm=Fin	4 race	aux
4	race	race	VERB	VerbForm=Inf	root	root
5	the	the	DET	Definite=Def PronType=Art	6 cars	det
6	cars	car	NOUN	Number=Plur	4 race	obj
7	to	to	ADP	_	10 side	case
8	the	the	DET	Definite=Def PronType=Art	10 side	det
9	other	other	ADJ	Degree=Pos	10 side	amod
10	side	side	NOUN	Number=Sing	4 race	obl
11	before	before	SCONJ	_	13 move	mark
12	they	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	13 move	nsubj
13	move	move	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	4 race	advcl
14	off	off	ADP	_	13 move	compound:prt

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	race	can	you	the cars		the other side			vn run-51.3.2-2 «NP V NP PP.trajectory»: agent=Agent car=Theme to side=Trajectory
2	move off	present	cars = car						vn roll-51.3.1 «NP.theme V»: agent=Theme

Option 3

So drivers know when to speed up

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	So	so	ADV	_	3 know	advmod
2	drivers	driver	NOUN	Number=Plur	3 know	nsubj
3	know	know	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
4	when	when	ADV	PronType=Int	6 speed	advmod
5	to	to	PART	_	6 speed	mark
6	speed	speed	VERB	VerbForm=Inf	3 know	ccomp
7	up	up	ADP	_	6 speed	compound:prt

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	know	present	drivers						vn comprehend-87.2-1-1-1 «NP V how S_INF»: agent=Experiencer clause=Stimulus
2	speed up	to-infinitive							vn run-51.3.2-2 «NP V»: agent=Theme

Option 4 · ✓ the right answer

So you know how long is left and do not start too late

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	So	so	ADV	_	3 know	advmod
2	you	you	PRON	Case=Nom Person=2 PronType=Prs	3 know	nsubj
3	know	know	VERB	Mood=Ind Number=Sing Person=2 Tense=Pres VerbForm=Fin	7 left	advcl
4	how	how	ADV	PronType=Int	5 long	advmod
5	long	long	ADV	Degree=Pos	7 left	advmod
6	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	7 left	aux:pass
7	left	leave	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
8	and	and	CCONJ	_	11 start	cc
9	do	do	AUX	Mood=Imp VerbForm=Fin	11 start	aux
10	not	not	PART	Polarity=Neg	11 start	advmod
11	start	start	VERB	VerbForm=Inf	7 left	conj
12	too	too	ADV	_	13 late	advmod
13	late	late	ADV	Degree=Pos	11 start	advmod

#	verb	tense, mood	who	other	roles by
1	know	present	you		vn comprehend-87.2-1-1-1 «NP V»: agent=Experiencer
2	leave	present · passive		long property	vn escape-51.1-1-1 «NP V»
3	not start	infinitive · do-support		late property	vn begin-55.1-1-1 «NP.eventuality V»: agent=Eventuality

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/everyday/42-lights-crossings-and-parked-cars/t6/