---
title: Darwin's finches have beaks suited to seeds, insects or cactus; over… — How scientists find out: naturalists, Darwin, th… · tree and pragmatics
description: Darwin's finches have beaks suited to seeds, insects or cactus; over many generations birds whose beaks fitted the food survived better, so beaks changed. Who acts: finches, beaks, birds. A sentence of the lesson «How scientists find out: naturalists, Darwin, the microscope and wildlife filming» of 
---

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# How scientists find out: naturalists, Darwin, the microscope and wildlife filming, sentence 8

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Darwin's finches have beaks suited to seeds, insects or cactus; over many generations birds whose beaks fitted the food survived better, so beaks changed.

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**Who acts:** finches, beaks, birds · **What happens:** have, suit, fit, survive, change · **To what, where:** beaks, food, many generations

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This is a sentence of the lesson «How scientists find out: naturalists, Darwin, the microscope and wildlife filming» 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 (finches, beaks, birds), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:264-how-scientists-find-out-naturalists-darwin-the-microscope-and-wildlife-filming.lesson:8
# text = Darwin's finches have beaks suited to seeds, insects or cactus; over many generations birds whose beaks fitted the food survived better, so beaks changed.
# source = school lesson (ours)
# course = biology
# lesson = 264-how-scientists-find-out-naturalists-darwin-the-microscope-and-wildlife-filming.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): R7-rel-agree ×2
1	Darwin	Darwin	PROPN	NNP	Number=Sing	3	nmod:poss	_	_
2	's	's	PART	POS	_	1	case	_	_
3	finches	finch	NOUN	NNS	Number=Plur	4	nsubj	_	_
4	have	have	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	beaks	beak	NOUN	NNS	Number=Plur	4	obj	_	_
6	suited	suit	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	acl	_	_
7	to	to	ADP	IN	_	8	case	_	_
8	seeds	seed	NOUN	NNS	Number=Plur	6	obl	_	_
9	,	,	PUNCT	,	_	10	punct	_	_
10	insects	insect	NOUN	NNS	Number=Plur	8	conj	_	_
11	or	or	CCONJ	CC	_	12	cc	_	_
12	cactus	cactus	NOUN	NN	Number=Sing	8	conj	_	_
13	;	;	PUNCT	,	_	20	punct	_	_
14	over	over	ADP	IN	_	16	case	_	Agree=R7-rel-agree|Haiku=16:advmod|HaikuPos=ADV:RB:_
15	many	many	ADJ	JJ	Degree=Pos	16	amod	_	_
16	generations	generation	NOUN	NNS	Number=Plur	23	obl:unmarked	_	_
17	birds	bird	NOUN	NNS	Number=Plur	23	nsubj	_	_
18	whose	whose	PRON	WP$	Poss=Yes|PronType=Rel	19	nmod:poss	_	_
19	beaks	beak	NOUN	NNS	Number=Plur	20	nsubj	_	_
20	fitted	fit	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	17	acl:relcl	_	_
21	the	the	DET	DT	Definite=Def|PronType=Art	22	det	_	_
22	food	food	NOUN	NN	Number=Sing	20	obj	_	_
23	survived	survive	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	4	parataxis	_	Agree=R7-rel-agree|Haiku=4:conj
24	better	well	ADV	RBR	Degree=Cmp	23	advmod	_	_
25	,	,	PUNCT	,	_	28	punct	_	_
26	so	so	ADV	RB	_	28	advmod	_	_
27	beaks	beak	NOUN	NNS	Number=Plur	28	nsubj	_	_
28	changed	change	VERB	VBD	Mood=Ind|Tense=Past|VerbForm=Fin	4	conj	_	_
29	.	.	PUNCT	.	_	4	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 | **have** | present | Darwin's finches | beaks |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent beak=Patient |
| 2 | **suit** | participle |  | beaks *not said here* |  |  |  | to seeds and insects or cactus | tree rules |
| 3 | **fit** | past | beaks | the food |  |  |  |  | vn adjust-26.9 «NP V NP»: agent=Agent food=Patient |
| 4 | **survive** | past | birds |  |  |  | over many generations | well *property* | vn exist-47.1-1 «NP V PP.location»: agent=Theme over generation=Location |
| 5 | **change** | past | beaks |  |  |  |  |  | vn dress-41.1.1-1-1 «NP V»: agent=Agent |

<!-- .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:264-how-scientists-find-out-naturalists-darwin-the-microscope-and-wildlife-filming.lesson:8`.

**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 ×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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