Road and railway safety, sentence 12

At a level crossing, never cross when the lights flash or the barriers are down; wait until they go up, because a second train may come, and a fast train can take more than a kilometre to stop.

Who acts: you, lights, second train, fast train · What happens: not cross, flash, be, wait, go up, come · To what, where: level crossing, kilometre

This is a sentence of the lesson «Road and railway safety» of the technology course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (you, lights, second train, fast train), what happens, when and where, as Mova's frames read it from the tree.

The tree

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	At	at	ADP	_	4 crossing	case
2	a	a	DET	Definite=Ind PronType=Art	4 crossing	det
3	level	level	NOUN	Number=Sing	4 crossing	compound
4	crossing	crossing	NOUN	Number=Sing	7 cross	obl
5	,	,	PUNCT	_	4 crossing	punct
6	never	never	ADV	PronType=Neg	7 cross	advmod
7	cross	cross	VERB	Mood=Imp VerbForm=Fin	root	root
8	when	when	ADV	PronType=Int	16 down	advmod
9	the	the	DET	Definite=Def PronType=Art	10 lights	det
10	lights	light	NOUN	Number=Plur	11 flash	nsubj
11	flash	flash	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	7 cross	advcl
12	or	or	CCONJ	_	14 barriers	cc
13	the	the	DET	Definite=Def PronType=Art	14 barriers	det
14	barriers	barrier	NOUN	Number=Plur	11 flash	conj
15	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	16 down	cop
16	down	down	ADV	_	7 cross	advmod
17	;	;	PUNCT	_	18 wait	punct
18	wait	wait	VERB	Mood=Imp VerbForm=Fin	7 cross	parataxis
19	until	until	SCONJ	_	21 go	mark
20	they	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	21 go	nsubj
21	go	go	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	18 wait	advcl
22	up	up	ADV	_	21 go	compound:prt
23	,	,	PUNCT	_	29 come	punct
24	because	because	SCONJ	_	29 come	mark
25	a	a	DET	Definite=Ind PronType=Art	27 train	det
26	second	second	ADJ	Degree=Pos NumForm=Word NumType=Ord	27 train	amod
27	train	train	NOUN	Number=Sing	29 come	nsubj
28	may	may	AUX	VerbForm=Fin	29 come	aux
29	come	come	VERB	VerbForm=Inf	18 wait	advcl
30	,	,	PUNCT	_	36 take	punct
31	and	and	CCONJ	_	36 take	cc
32	a	a	DET	Definite=Ind PronType=Art	34 train	det
33	fast	fast	ADJ	Degree=Pos	34 train	amod
34	train	train	NOUN	Number=Sing	36 take	nsubj
35	can	can	AUX	VerbForm=Fin	36 take	aux
36	take	take	VERB	VerbForm=Inf	29 come	conj
37	more	more	ADJ	Degree=Cmp ExtPos=ADV	40 kilometre	advmod
38	than	than	ADP	_	37 more	fixed
39	a	a	DET	Definite=Ind PronType=Art	40 kilometre	det
40	kilometre	kilometre	NOUN	Number=Sing	36 take	obj
41	to	to	PART	_	42 stop	mark
42	stop	stop	VERB	VerbForm=Inf	36 take	advcl
43	.	.	PUNCT	_	7 cross	punct

Pragmatics

form: command
act: warn
voice: narrator
polarity: none
teacher: changed form=imp, act=warn

#	verb	tense, mood	who	what, whom	where	other	roles by
1	not cross	imperative	you not said here		a level crossing		vn contiguous_location-47.8-1 «NP V»: agent=Theme
2	flash	present	the lights				vn light_emission-43.1 «NP V»: agent=Theme
3	is	present				down property	tree rules
4	wait	infinitive					vn exist-47.1 «NP V»: agent=Theme
5	go up	present	lights = light				vn calibratable_cos-45.6.1-1 «NP.attribute V»: agent=Attribute
6	come	may	a second train				vn escape-51.1-1 «NP V»: agent=Theme
7	take	can	a fast train	a kilometre			vn bring-11.3 «NP V NP»: agent=Agent kilometre=Theme
8	stop	to-infinitive	a fast train not said here				vn stop-55.4-1-1 «NP.eventuality V»: agent=Eventuality

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.

Licence: CC BY-SA 4.0, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, mova-school-agreed-en.conllu) is part. The lessons were written for Mova's primary school. Sentence school:technology:027-road-and-railway-safety.lesson:12.

The tree: Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R5-strong ×2, R7-rel-agree ×3. The frames are read from the tree by Mova's frames reader (prag) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the release 0.4.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/technology/27-road-and-railway-safety/12/