Tarnish and how metals change, sentence 13

A cheap ring with copper in it can leave a harmless green mark on skin, because sweat with its salt and acid reacts with the copper; the mark simply washes off.

Who acts: cheap ring, sweat, mark · What happens: leave, react, wash off · To what, where: harmless green mark, skin

This is a sentence of the lesson «Tarnish and how metals change» of the chemistry 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 (cheap ring, sweat, mark), 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	3 ring	det
2	cheap	cheap	ADJ	Degree=Pos	3 ring	amod
3	ring	ring	NOUN	Number=Sing	root	root
4	with	with	ADP	_	5 copper	case
5	copper	copper	NOUN	Number=Sing	3 ring	nmod
6	in	in	ADP	_	7 it	case
7	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	5 copper	nmod
8	can	can	AUX	VerbForm=Fin	9 leave	aux
9	leave	leave	VERB	VerbForm=Inf	3 ring	acl
10	a	a	DET	Definite=Ind PronType=Art	13 mark	det
11	harmless	harmless	ADJ	Degree=Pos	13 mark	amod
12	green	green	ADJ	Degree=Pos	13 mark	amod
13	mark	mark	NOUN	Number=Sing	9 leave	obj
14	on	on	ADP	_	15 skin	case
15	skin	skin	NOUN	Number=Sing	9 leave	obl
16	,	,	PUNCT	_	18 sweat	punct
17	because	because	SCONJ	_	24 reacts	mark
18	sweat	sweat	NOUN	Number=Sing	24 reacts	nsubj
19	with	with	ADP	_	21 salt	case
20	its	its	PRON	Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs	21 salt	nmod:poss
21	salt	salt	NOUN	Number=Sing	18 sweat	nmod
22	and	and	CCONJ	_	23 acid	cc
23	acid	acid	NOUN	Number=Sing	21 salt	conj
24	reacts	react	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	9 leave	advcl
25	with	with	ADP	_	27 copper	case
26	the	the	DET	Definite=Def PronType=Art	27 copper	det
27	copper	copper	NOUN	Number=Sing	24 reacts	obl
28	;	;	PUNCT	_	32 washes	punct
29	the	the	DET	Definite=Def PronType=Art	30 mark	det
30	mark	mark	NOUN	Number=Sing	32 washes	nsubj
31	simply	simply	ADV	_	32 washes	advmod
32	washes	wash	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 ring	parataxis
33	off	off	ADP	_	32 washes	compound:prt
34	.	.	PUNCT	_	3 ring	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	leave	can	a cheap ring with copper in copper not said here	a harmless green mark	skin		vn keep-15.2 «NP V NP PP.location»: agent=Agent mark=Theme on skin=Location
2	react	present	sweat with copper's salt and acid			with the copper	vn respond-113 «NP V PP.predicate»: agent=Agent with copper=Eventuality
3	wash off	present	the mark			simply property	vn floss-41.2.1 «NP V»: agent=Agent

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:chemistry:014-tarnish-and-how-metals-change.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): R5-strong ×1, R7-rel-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/chemistry/14-tarnish-and-how-metals-change/13/