Pigeons: head bobbing, homing and city cliffs, sentence 9

Baby pigeons are rarely seen because the chicks stay hidden in the nest until they are almost grown; both parents feed them a special crop milk.

Who acts: chicks, parents · What happens: see, stay, hide, grow, feed · To what, where: Baby pigeons, nest, pigeons, special crop milk

This is a sentence of the lesson «Pigeons: head bobbing, homing and city cliffs» of the biology 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 (chicks, parents), 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	Baby	baby	NOUN	Number=Sing	2 pigeons	compound
2	pigeons	pigeon	NOUN	Number=Plur	5 seen	nsubj:pass
3	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	5 seen	aux:pass
4	rarely	rarely	ADV	_	5 seen	advmod
5	seen	see	VERB	Tense=Past VerbForm=Part Voice=Pass	root	root
6	because	because	SCONJ	_	9 stay	mark
7	the	the	DET	Definite=Def PronType=Art	8 chicks	det
8	chicks	chick	NOUN	Number=Plur	9 stay	nsubj
9	stay	stay	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	5 seen	advcl
10	hidden	hide	VERB	Tense=Past VerbForm=Part Voice=Pass	9 stay	xcomp
11	in	in	ADP	_	13 nest	case
12	the	the	DET	Definite=Def PronType=Art	13 nest	det
13	nest	nest	NOUN	Number=Sing	10 hidden	obl
14	until	until	SCONJ	_	18 grown	mark
15	they	they	PRON	Case=Nom Number=Plur Person=3 PronType=Prs	18 grown	nsubj
16	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	18 grown	aux:pass
17	almost	almost	ADV	_	18 grown	advmod
18	grown	grow	VERB	Tense=Past VerbForm=Part Voice=Pass	9 stay	advcl
19	;	;	PUNCT	_	22 feed	punct
20	both	both	DET	PronType=Tot	21 parents	det
21	parents	parent	NOUN	Number=Plur	22 feed	nsubj
22	feed	feed	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	5 seen	parataxis
23	them	they	PRON	Case=Acc Number=Plur Person=3 PronType=Prs	22 feed	iobj
24	a	a	DET	Definite=Ind PronType=Art	27 milk	det
25	special	special	ADJ	Degree=Pos	27 milk	amod
26	crop	crop	NOUN	Number=Sing	27 milk	compound
27	milk	milk	NOUN	Number=Sing	22 feed	obj
28	.	.	PUNCT	_	5 seen	punct

Pragmatics

No stored speech act for this sentence.

#	verb	tense, mood	who	what, whom	to whom	where	other	roles by
1	see	present · passive		Baby pigeons			rarely property	vn comprehend-87.2-1-1 «NP V NP»: subject=Stimulus
2	stay	present	the chicks					tree rules
3	hide	participle	the chicks not said here			the nest		vn concealment-16-1 «NP V PP.location»: agent=Agent in nest=Location
4	grow	present · passive		pigeons = pigeon			almost property	vn appear-48.1.1 «PP.location V NP»: subject=Theme
5	feed	present	both parents	a special crop milk	pigeons = pigeon			vn feeding-39.7 «NP V NP-Dative NP»: agent=Agent they=Recipient milk=Theme

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:biology:221-pigeons-head-bobbing-homing-and-city-cliffs.lesson:9.

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): 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/biology/221-pigeons-head-bobbing-homing-and-city-cliffs/9/