Friction: the grip that stops and helps, sentence 6

Ice has a thin slippery layer on top, so skates hardly grip, but scientists still argue about exactly why ice is so slippery.

Who acts: Ice, skates, scientists · What happens: have, grip, argue, be · To what, where: thin slippery layer, top

This is a sentence of the lesson «Friction: the grip that stops and helps» of the physics 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 (Ice, skates, scientists), 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	Ice	ice	NOUN	Number=Sing	2 has	nsubj
2	has	have	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	a	a	DET	Definite=Ind PronType=Art	6 layer	det
4	thin	thin	ADJ	Degree=Pos	6 layer	amod
5	slippery	slippery	ADJ	Degree=Pos	6 layer	amod
6	layer	layer	NOUN	Number=Sing	2 has	obj
7	on	on	ADP	_	8 top	case
8	top	top	NOUN	Number=Sing	2 has	obl
9	,	,	PUNCT	_	11 skates	punct
10	so	so	ADV	_	13 grip	advmod
11	skates	skate	NOUN	Number=Plur	13 grip	nsubj
12	hardly	hardly	ADV	_	13 grip	advmod
13	grip	grip	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	2 has	parataxis
14	,	,	PUNCT	_	18 argue	punct
15	but	but	CCONJ	_	18 argue	cc
16	scientists	scientist	NOUN	Number=Plur	18 argue	nsubj
17	still	still	ADV	_	18 argue	advmod
18	argue	argue	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	2 has	conj
19	about	about	ADP	_	25 slippery	case
20	exactly	exactly	ADV	_	25 slippery	advmod
21	why	why	ADV	PronType=Int	25 slippery	advmod
22	ice	ice	NOUN	Number=Sing	25 slippery	nsubj
23	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	25 slippery	cop
24	so	so	ADV	_	25 slippery	advmod
25	slippery	slippery	ADJ	Degree=Pos	18 argue	ccomp
26	.	.	PUNCT	_	2 has	punct

Pragmatics

No stored speech act for this sentence.

#	verb	tense, mood	who	what, whom	where	when	other	roles by
1	have	present	Ice	a thin slippery layer	top			vn birth-28.2-1 «NP V NP»: agent=Agent layer=Patient
2	grip	present	skates				hardly property	vn touch-20-1 «NP V NP»: agent=Agent
3	argue speech: disagree	present	scientists			still		vn correspond-36.1-1 «NP V»: agent=Agent
4	is	present	ice				exactly, slippery property	tree rules

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:physics:006-friction-the-grip.lesson:6.

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, R7-rel-agree ×1, R8-pos-agree ×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/physics/6-friction-the-grip/6/