---
title: Many bird bones are hollow, with thin crossing struts, and some are… — Birds: feathers, wings, eggs and flight · tree and pragmatics
description: Many bird bones are hollow, with thin crossing struts, and some are filled with air connected to the lungs. Who acts: Many bird bones. A sentence of the lesson «Birds: feathers, wings, eggs and flight» of the biology course of Mova's primary school with its dependency tree and the pragmatics of ever
---

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# Birds: feathers, wings, eggs and flight, sentence 6

<!-- .ven lang=en -->
Many bird bones are hollow, with thin crossing struts, and some are filled with air connected to the lungs.

<!-- .vintro -->
**Who acts:** Many bird bones · **What happens:** be, fill, connect · **To what, where:** some, air

<!-- .vabout -->
This is a sentence of the lesson «Birds: feathers, wings, eggs and flight» 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 (Many bird bones), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:033-birds-feathers-wings-eggs-and-flight.lesson:6
# text = Many bird bones are hollow, with thin crossing struts, and some are filled with air connected to the lungs.
# source = school lesson (ours)
# course = biology
# lesson = 033-birds-feathers-wings-eggs-and-flight.lesson
# annotation = 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
1	Many	many	ADJ	JJ	Degree=Pos	3	amod	_	_
2	bird	bird	NOUN	NN	Number=Sing	3	compound	_	_
3	bones	bone	NOUN	NNS	Number=Plur	5	nsubj	_	_
4	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
5	hollow	hollow	ADJ	JJ	Degree=Pos	0	root	_	_
6	,	,	PUNCT	,	_	10	punct	_	_
7	with	with	ADP	IN	_	10	case	_	_
8	thin	thin	ADJ	JJ	Degree=Pos	10	amod	_	_
9	crossing	crossing	NOUN	NN	Number=Sing	10	compound	_	_
10	struts	strut	NOUN	NNS	Number=Plur	5	obl	_	_
11	,	,	PUNCT	,	_	15	punct	_	_
12	and	and	CCONJ	CC	_	15	cc	_	_
13	some	some	DET	DT	PronType=Ind	15	nsubj:pass	_	_
14	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	15	aux:pass	_	_
15	filled	fill	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	conj	_	_
16	with	with	ADP	IN	_	17	case	_	_
17	air	air	NOUN	NN	Number=Sing	15	obl	_	_
18	connected	connect	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	17	acl	_	_
19	to	to	ADP	IN	_	21	case	_	_
20	the	the	DET	DT	Definite=Def|PronType=Art	21	det	_	_
21	lungs	lung	NOUN	NNS	Number=Plur	18	obl	_	_
22	.	.	PUNCT	.	_	5	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | Many bird bones |  |  |  |  | with thin crossing struts; hollow *property* | tree rules |
| 2 | **fill** | present · passive |  | some |  |  |  | with air | vn other\_cos-45.4 «NP V NP PP.instrument»: subject=Patient with air=Instrument |
| 3 | **connect** | participle |  | air *not said here* |  |  |  | to the lungs | vn mix-22.1-2-1 «NP V PP.patient»: agent=Patient to lung=Co-Patient |

<!-- .note -->
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.

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**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/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:033-birds-feathers-wings-eggs-and-flight.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): 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](https://md.mova.elamur.ai/free/en/releases/0.4/).

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- ← previous: [Birds: feathers, wings, eggs and flight, 5](https://md.mova.elamur.ai/free/en/corpora/school/biology/33-birds-feathers-wings-eggs-and-flight/5/)
- next →: [Birds: feathers, wings, eggs and flight, 7](https://md.mova.elamur.ai/free/en/corpora/school/biology/33-birds-feathers-wings-eggs-and-flight/7/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/33-birds-feathers-wings-eggs-and-flight/)