---
title: Hummingbirds beat their wings about 50 to 80 times a second in a fig… — Birds of every kind: penguins, ostriches, parrot… · tree and pragmatics
description: Hummingbirds beat their wings about 50 to 80 times a second in a figure-of-eight, so they can hover and fly backwards; the bee hummingbird of Cuba is the smallest bird. Who acts: Hummingbirds, numbers, bee hummingbird. A sentence of the lesson «Birds of every kind: penguins, ostriches, parrots, humm
---

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# Birds of every kind: penguins, ostriches, parrots, hummingbirds, songbirds, crows, sentence 9

<!-- .ven lang=en -->
Hummingbirds beat their wings about 50 to 80 times a second in a figure-of-eight, so they can hover and fly backwards; the bee hummingbird of Cuba is the smallest bird.

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**Who acts:** Hummingbirds, numbers, bee hummingbird · **What happens:** beat, hover, fly, be · **To what, where:** wings, second smallest bird

<!-- .vabout -->
This is a sentence of the lesson «Birds of every kind: penguins, ostriches, parrots, hummingbirds, songbirds, crows» 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 (Hummingbirds, numbers, bee hummingbird), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:035-birds-of-every-kind.lesson:9
# text = Hummingbirds beat their wings about 50 to 80 times a second in a figure-of-eight, so they can hover and fly backwards; the bee hummingbird of Cuba is the smallest bird.
# source = school lesson (ours)
# course = biology
# lesson = 035-birds-of-every-kind.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): R1-cc-next ×1, R2-punct-next ×1, R5-strong ×2
1	Hummingbirds	hummingbird	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	beat	beat	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	4	nmod:poss	_	_
4	wings	wing	NOUN	NNS	Number=Plur	2	obj	_	_
5	about	about	ADV	RB	_	6	advmod	_	_
6	50	50	NUM	CD	NumForm=Digit|NumType=Card	9	nummod	_	_
7	to	to	ADP	IN	_	8	case	_	_
8	80	80	NUM	CD	NumForm=Digit|NumType=Card	6	nmod	_	_
9	times	time	NOUN	NNS	Number=Plur	2	obl:unmarked	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	Agree=R5-strong|Haiku=36:det
11	second	second	ADJ	JJ	Degree=Pos|NumForm=Word|NumType=Ord	36	amod	_	_
12	in	in	ADP	IN	_	14	case	_	_
13	a	a	DET	DT	Definite=Ind|PronType=Art	14	det	_	Agree=R5-strong|Haiku=36:det
14	figure	figure	NOUN	NN	Number=Sing	2	obl	_	_
15	-	-	PUNCT	HYPH	_	18	punct	_	_
16	of	of	ADP	IN	_	18	case	_	_
17	-	-	PUNCT	HYPH	_	16	punct	_	_
18	eight	eight	NUM	CD	NumForm=Word|NumType=Card	14	nmod	_	_
19	,	,	PUNCT	,	_	23	punct	_	_
20	so	so	ADV	RB	_	23	advmod	_	_
21	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	23	nsubj	_	_
22	can	can	AUX	MD	VerbForm=Fin	23	aux	_	_
23	hover	hover	VERB	VB	VerbForm=Inf	2	advcl	_	_
24	and	and	CCONJ	CC	_	25	cc	_	Agree=R1-cc-next|Haiku=23:cc
25	fly	fly	VERB	VB	VerbForm=Inf	23	conj	_	_
26	backwards	backward	ADV	RB	_	25	advmod	_	_
27	;	;	PUNCT	:	_	36	punct	_	Agree=R2-punct-next|Haiku=2:punct
28	the	the	DET	DT	Definite=Def|PronType=Art	30	det	_	_
29	bee	bee	NOUN	NN	Number=Sing	30	compound	_	_
30	hummingbird	hummingbird	NOUN	NN	Number=Sing	36	nsubj	_	_
31	of	of	ADP	IN	_	32	case	_	_
32	Cuba	Cuba	PROPN	NNP	Number=Sing	30	nmod	_	_
33	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	36	cop	_	_
34	the	the	DET	DT	Definite=Def|PronType=Art	36	det	_	_
35	smallest	small	ADJ	JJS	Degree=Sup	36	amod	_	_
36	bird	bird	NOUN	NN	Number=Sing	2	conj	_	_
37	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- sa -->
- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **beat** | present | Hummingbirds | numbers's wings |  |  | time | in a figure of eight | vn crane-40.3.2 «NP V NP PP.recipient PP.theme»: agent=Agent wing=Patient in figure=Topic |
| 2 | **hover** | can | numbers *= number* |  |  |  |  |  | vn modes\_of\_being\_with\_motion-47.3 «NP V»: agent=Theme |
| 3 | **fly** | infinitive | numbers *= number* *not said here* |  |  |  |  | backward *property* | vn spatial\_configuration-47.6-1 «NP V»: agent=Theme |
| 4 | **is a** | present | the bee hummingbird of Cuba | the second smallest bird |  |  |  |  | tree rules |

<!-- .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:035-birds-of-every-kind.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): R1-cc-next ×1, R2-punct-next ×1, R5-strong ×2. **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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