Escalators and lifts, sentence 7

An escalator is a loop of steps on a chain pulled by a motor; the steps flatten at the top and bottom, and the handrail moves at the same speed as the steps.

Who acts: escalator, steps, handrail · What happens: be, pull, flatten, move · To what, where: loop, chain, top, same speed

This is a sentence of the lesson «Escalators and lifts» 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 (escalator, steps, handrail), 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	An	a	DET	Definite=Ind PronType=Art	2 escalator	det
2	escalator	escalator	NOUN	Number=Sing	5 loop	nsubj
3	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	5 loop	cop
4	a	a	DET	Definite=Ind PronType=Art	5 loop	det
5	loop	loop	NOUN	Number=Sing	root	root
6	of	of	ADP	_	7 steps	case
7	steps	step	NOUN	Number=Plur	5 loop	nmod
8	on	on	ADP	_	10 chain	case
9	a	a	DET	Definite=Ind PronType=Art	10 chain	det
10	chain	chain	NOUN	Number=Sing	7 steps	nmod
11	pulled	pull	VERB	Tense=Past VerbForm=Part Voice=Pass	10 chain	acl
12	by	by	ADP	_	14 motor	case
13	a	a	DET	Definite=Ind PronType=Art	14 motor	det
14	motor	motor	NOUN	Number=Sing	11 pulled	obl
15	;	;	PUNCT	_	18 flatten	punct
16	the	the	DET	Definite=Def PronType=Art	17 steps	det
17	steps	step	NOUN	Number=Plur	18 flatten	nsubj
18	flatten	flatten	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	5 loop	parataxis
19	at	at	ADP	_	21 top	case
20	the	the	DET	Definite=Def PronType=Art	21 top	det
21	top	top	NOUN	Number=Sing	18 flatten	obl
22	and	and	CCONJ	_	23 bottom	cc
23	bottom	bottom	NOUN	Number=Sing	21 top	conj
24	,	,	PUNCT	_	28 moves	punct
25	and	and	CCONJ	_	28 moves	cc
26	the	the	DET	Definite=Def PronType=Art	27 handrail	det
27	handrail	handrail	NOUN	Number=Sing	28 moves	nsubj
28	moves	move	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	18 flatten	conj
29	at	at	ADP	_	32 speed	case
30	the	the	DET	Definite=Def PronType=Art	32 speed	det
31	same	same	ADJ	Degree=Pos	32 speed	amod
32	speed	speed	NOUN	Number=Sing	28 moves	obl
33	as	as	ADP	_	35 steps	case
34	the	the	DET	Definite=Def PronType=Art	35 steps	det
35	steps	step	NOUN	Number=Plur	32 speed	nmod
36	.	.	PUNCT	_	5 loop	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	is a	present	a escalator	a loop		of steps on a chain	tree rules
2	pull	participle		a chain not said here		by a motor	vn slide-11.2 «NP V»: agent=Theme
3	flatten	present	the steps		the top and bottom		vn carve-21.2-1 «NP V ADVP-Middle»: agent=Patient
4	move	present	the handrail		the same speed as the steps		vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme at speed=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:026-escalators-and-lifts.lesson:7.

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 ×1. 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/26-escalators-and-lifts/7/