Trains and the Underground, sentence 13

A signal shows red when a train is in the section ahead; modern signalling can stop a train automatically if it passes a red signal.

Who acts: signal, train, modern signalling · What happens: show, be, stop, pass · To what, where: section, train, red signal

This is a sentence of the lesson «Trains and the Underground» 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 (signal, train, modern signalling), 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	A	a	DET	Definite=Ind PronType=Art	2 signal	det
2	signal	signal	NOUN	Number=Sing	3 shows	nsubj
3	shows	show	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	red	red	ADV	_	3 shows	advmod
5	when	when	ADV	PronType=Int	11 section	advmod
6	a	a	DET	Definite=Ind PronType=Art	7 train	det
7	train	train	NOUN	Number=Sing	11 section	nsubj
8	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	11 section	cop
9	in	in	ADP	_	11 section	case
10	the	the	DET	Definite=Def PronType=Art	11 section	det
11	section	section	NOUN	Number=Sing	3 shows	advcl
12	ahead	ahead	ADV	_	11 section	advmod
13	;	;	PUNCT	_	17 stop	punct
14	modern	modern	ADJ	Degree=Pos	15 signalling	amod
15	signalling	signalling	NOUN	Number=Sing	17 stop	nsubj
16	can	can	AUX	VerbForm=Fin	17 stop	aux
17	stop	stop	VERB	VerbForm=Inf	3 shows	parataxis
18	a	a	DET	Definite=Ind PronType=Art	19 train	det
19	train	train	NOUN	Number=Sing	17 stop	obj
20	automatically	automatically	ADV	_	17 stop	advmod
21	if	if	SCONJ	_	23 passes	mark
22	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	23 passes	nsubj
23	passes	pass	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	17 stop	advcl
24	a	a	DET	Definite=Ind PronType=Art	26 signal	det
25	red	red	ADJ	Degree=Pos	26 signal	amod
26	signal	signal	NOUN	Number=Sing	23 passes	obj
27	.	.	PUNCT	_	3 shows	punct

Pragmatics

form: statement
act: assert
voice: narrator
polarity: none
teacher: kept the draft

#	verb	tense, mood	who	what, whom	where	other	roles by
1	show	present	a signal			red property	vn transfer_mesg-37.1.1-1-1 «NP V»: agent=Agent
2	is	present	a train		the section	ahead property	tree rules
3	stop	can	modern signalling	a train		automatically property	vn stop-55.4-1-1 «NP V NP.eventuality»: agent=Subeventuality train=Eventuality
4	pass a condition, not said to happen	present	train	a red signal			vn escape-51.1-1-3 «NP V NP»: agent=Theme signal=Trajectory

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:021-trains-and-the-underground.lesson:13.

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): no change. 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/21-trains-and-the-underground/13/