Mirrors, rainbows and the blue sky, sentence 10

A rainbow forms when each raindrop bends sunlight, splits it into colours and bounces it back, and you see it only with the Sun behind you.

Who acts: rainbow, raindrop, you · What happens: form, bend, split, bounce back, see · To what, where: sunlight, colours

This is a sentence of the lesson «Mirrors, rainbows and the blue sky» 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 (rainbow, raindrop, you), 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 rainbow	det
2	rainbow	rainbow	NOUN	Number=Sing	3 forms	nsubj
3	forms	form	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
4	when	when	SCONJ	_	7 bends	mark
5	each	each	DET	PronType=Tot	6 raindrop	det
6	raindrop	raindrop	NOUN	Number=Sing	7 bends	nsubj
7	bends	bend	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	3 forms	advcl
8	sunlight	sunlight	NOUN	Number=Sing	7 bends	obj
9	,	,	PUNCT	_	10 splits	punct
10	splits	split	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	7 bends	conj
11	it	it	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	10 splits	obj
12	into	into	ADP	_	13 colours	case
13	colours	colour	NOUN	Number=Plur	10 splits	obl
14	and	and	CCONJ	_	15 bounces	cc
15	bounces	bounce	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	10 splits	conj
16	it	it	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	15 bounces	obj
17	back	back	ADV	_	15 bounces	advmod
18	,	,	PUNCT	_	21 see	punct
19	and	and	CCONJ	_	21 see	cc
20	you	you	PRON	Case=Nom Person=2 PronType=Prs	21 see	nsubj
21	see	see	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	3 forms	conj
22	it	it	PRON	Case=Acc Gender=Neut Number=Sing Person=3 PronType=Prs	21 see	obj
23	only	only	ADV	_	21 see	advmod
24	with	with	ADP	_	26 Sun	case
25	the	the	DET	Definite=Def PronType=Art	26 Sun	det
26	Sun	Sun	PROPN	Number=Sing	21 see	obl
27	behind	behind	ADP	_	28 you	case
28	you	you	PRON	Case=Acc Person=2 PronType=Prs	26 Sun	nmod
29	.	.	PUNCT	_	21 see	punct

Pragmatics

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

#	verb	tense, mood	who	what, whom	other	roles by
1	form	present	a rainbow			vn appear-48.1.1 «NP V»: agent=Theme
2	bend	present	each raindrop	sunlight		vn knead-26.5 «NP V NP.material»: agent=Agent sunlight=Material
3	split	present	each raindrop not said here	sunlight	into colours result	vn break-45.1 «NP V NP PP.result»: agent=Agent it=Patient into colour=Result
4	bounce back	present	each raindrop not said here	sunlight		vn run-51.3.2-2 «NP V NP»: agent=Agent it=Theme
5	see	present	you	sunlight	with the Sun behind you	vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer it=Stimulus

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:021-mirrors-rainbows-and-the-blue-sky.lesson:10.

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/physics/21-mirrors-rainbows-and-the-blue-sky/10/