Volcanoes and earthquakes up close, sentence 3

Runny lava lets gas escape gently, so it flows out in rivers, as in Hawaii; thick, sticky lava traps the gas until it blasts out in an explosion of ash and rock, as at Mount Vesuvius, which buried the Roman town of Pompeii in the year 79.

Who acts: Runny lava, gas, thick sticky lava, Mount Vesuvius · What happens: let, escape, flow out, trap, blast out, bury · To what, where: gas, rivers, explosion, Roman town, ash

This is a sentence of the lesson «Volcanoes and earthquakes up close» of the world 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 (Runny lava, gas, thick sticky lava, Mount Vesuvius), 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	Runny	runny	ADJ	Degree=Pos	2 lava	amod
2	lava	lava	NOUN	Number=Sing	3 lets	nsubj
3	lets	let	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	10 flows	parataxis
4	gas	gas	NOUN	Number=Sing	3 lets	obj
5	escape	escape	VERB	VerbForm=Inf	3 lets	xcomp
6	gently	gently	ADV	_	5 escape	advmod
7	,	,	PUNCT	_	6 gently	punct
8	so	so	ADV	_	10 flows	advmod
9	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	10 flows	nsubj
10	flows	flow	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
11	out	out	ADP	_	10 flows	compound:prt
12	in	in	ADP	_	13 rivers	case
13	rivers	river	NOUN	Number=Plur	10 flows	obl
14	,	,	PUNCT	_	17 Hawaii	punct
15	as	as	ADP	_	17 Hawaii	case
16	in	in	ADP	_	17 Hawaii	case
17	Hawaii	Hawaii	PROPN	Number=Sing	13 rivers	appos
18	;	;	PUNCT	_	23 traps	punct
19	thick	thick	ADJ	Degree=Pos	22 lava	amod
20	,	,	PUNCT	_	19 thick	punct
21	sticky	sticky	ADJ	Degree=Pos	22 lava	amod
22	lava	lava	NOUN	Number=Sing	23 traps	nsubj
23	traps	trap	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	10 flows	conj
24	the	the	DET	Definite=Def PronType=Art	25 gas	det
25	gas	gas	NOUN	Number=Sing	23 traps	obj
26	until	until	SCONJ	_	28 blasts	mark
27	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	28 blasts	nsubj
28	blasts	blast	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	23 traps	advcl
29	out	out	ADV	_	28 blasts	advmod
30	in	in	ADP	_	32 explosion	case
31	an	a	DET	Definite=Ind PronType=Art	32 explosion	det
32	explosion	explosion	NOUN	Number=Sing	28 blasts	obl
33	of	of	ADP	_	34 ash	case
34	ash	ash	NOUN	Number=Sing	32 explosion	nmod
35	and	and	CCONJ	_	36 rock	cc
36	rock	rock	NOUN	Number=Sing	34 ash	conj
37	,	,	PUNCT	_	41 Vesuvius	punct
38	as	as	ADP	_	41 Vesuvius	case
39	at	at	ADP	_	41 Vesuvius	case
40	Mount	Mount	PROPN	Number=Sing	41 Vesuvius	compound
41	Vesuvius	Vesuvius	PROPN	Number=Sing	10 flows	obl
42	,	,	PUNCT	_	44 buried	punct
43	which	which	PRON	PronType=Rel	44 buried	nsubj
44	buried	bury	VERB	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	41 Vesuvius	parataxis
45	the	the	DET	Definite=Def PronType=Art	47 town	det
46	Roman	roman	ADJ	Degree=Pos	47 town	amod
47	town	town	NOUN	Number=Sing	44 buried	obj
48	of	of	ADP	_	49 Pompeii	case
49	Pompeii	Pompeii	PROPN	Number=Sing	47 town	nmod
50	in	in	ADP	_	52 year	case
51	the	the	DET	Definite=Def PronType=Art	52 year	det
52	year	year	NOUN	Number=Sing	44 buried	obl
53	79	79	NUM	NumForm=Digit NumType=Card	52 year	flat
54	.	.	PUNCT	_	3 lets	punct

Pragmatics

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

#	verb	tense, mood	who	what, whom	where	when	other	roles by
1	let	present	Runny lava	gas				tree rules
2	escape	infinitive	gas not said here				gently property	vn escape-51.1-1-1 «NP V»: agent=Theme
3	flow out	present	gas		rivers		as Mount Vesuvius	vn appear-48.1.1 «NP V PP.location»: agent=Theme in river=Location
4	trap	present	thick sticky lava	the gas				vn trick-59.2 «NP V NP»: agent=Agent gas=Patient
5	blast out	present	gas		a explosion of ash and rock		out property	vn sound_emission-43.2 «NP V PP.location»: agent=Theme in explosion=Location
6	bury	past	Mount Vesuvius	the Roman town of Pompeii		year		vn put-9.1-1 «NP V NP»: agent=Agent town=Theme
7	explode			ash and rock				nom explosion «event transitive»: of=patient

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:world:062-volcanoes-and-earthquakes.lesson:3.

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): R6-punct-agree ×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/world/62-volcanoes-and-earthquakes/3/