---
title: Most mammals stop digesting milk after babyhood, but in places where… — Natural selection we can watch: moths, finches,… · tree and pragmatics
description: Most mammals stop digesting milk after babyhood, but in places where people kept cows for thousands of years, a change that keeps milk digestion spread; it is a recent example of human evolution, and grown-ups without the change, who get tummy trouble from milk, are called lactose intolerant. Who ac
---

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# Natural selection we can watch: moths, finches, germs and tuskless elephants, sentence 15

<!-- .ven lang=en -->
Most mammals stop digesting milk after babyhood, but in places where people kept cows for thousands of years, a change that keeps milk digestion spread; it is a recent example of human evolution, and grown-ups without the change, who get tummy trouble from milk, are called lactose intolerant.

<!-- .vintro -->
**Who acts:** Most mammals, people, change, milk, grown ups · **What happens:** stop, digest, keep, be, grow, get · **To what, where:** milk, cows, recent example, tummy trouble, places · **Speech:** someone speaks here

<!-- .vabout -->
This is a sentence of the lesson «Natural selection we can watch: moths, finches, germs and tuskless elephants» 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 (Most mammals, people, change, milk), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:279-natural-selection-we-can-watch-moths-finches-germs-and-tuskless-elephants.lesson:15
# text = Most mammals stop digesting milk after babyhood, but in places where people kept cows for thousands of years, a change that keeps milk digestion spread; it is a recent example of human evolution, and grown-ups without the change, who get tummy trouble from milk, are called lactose intolerant.
# source = school lesson (ours)
# course = biology
# lesson = 279-natural-selection-we-can-watch-moths-finches-germs-and-tuskless-elephants.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): R5-strong ×2
1	Most	most	ADJ	JJS	Degree=Sup	2	amod	_	_
2	mammals	mammal	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	stop	stop	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	digesting	digest	VERB	VBG	VerbForm=Ger	3	xcomp	_	_
5	milk	milk	NOUN	NN	Number=Sing	4	obj	_	_
6	after	after	ADP	IN	_	7	case	_	_
7	babyhood	babyhood	NOUN	NN	Number=Sing	4	obl	_	Agree=R5-strong|Haiku=5:nmod
8	,	,	PUNCT	,	_	54	punct	_	_
9	but	but	CCONJ	CC	_	54	cc	_	_
10	in	in	ADP	IN	_	11	case	_	_
11	places	place	NOUN	NNS	Number=Plur	54	obl	_	_
12	where	where	ADV	WRB	PronType=Rel	14	advmod	_	_
13	people	people	NOUN	NNS	Number=Plur	14	nsubj	_	_
14	kept	keep	VERB	VBD	Mood=Ind|Tense=Past|VerbForm=Fin	11	acl:relcl	_	_
15	cows	cow	NOUN	NNS	Number=Plur	14	obj	_	_
16	for	for	ADP	IN	_	17	case	_	_
17	thousands	thousand	NOUN	NNS	Number=Plur	14	obl	_	_
18	of	of	ADP	IN	_	19	case	_	_
19	years	year	NOUN	NNS	Number=Plur	17	nmod	_	_
20	,	,	PUNCT	,	_	22	punct	_	_
21	a	a	DET	DT	Definite=Ind|PronType=Art	22	det	_	_
22	change	change	NOUN	NN	Number=Sing	13	conj	_	_
23	that	that	PRON	WDT	PronType=Rel	24	nsubj	_	_
24	keeps	keep	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	22	acl:relcl	_	_
25	milk	milk	NOUN	NN	Number=Sing	24	obj	_	_
26	digestion	digestion	NOUN	NN	Number=Sing	27	compound	_	_
27	spread	spread	NOUN	NN	Number=Sing	25	conj	_	_
28	;	;	PUNCT	:	_	33	punct	_	_
29	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	33	nsubj	_	_
30	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	33	cop	_	_
31	a	a	DET	DT	Definite=Ind|PronType=Art	33	det	_	_
32	recent	recent	ADJ	JJ	Degree=Pos	33	amod	_	_
33	example	example	NOUN	NN	Number=Sing	3	parataxis	_	_
34	of	of	ADP	IN	_	36	case	_	_
35	human	human	ADJ	JJ	Degree=Pos	36	amod	_	_
36	evolution	evolution	NOUN	NN	Number=Sing	33	nmod	_	_
37	,	,	PUNCT	,	_	41	punct	_	_
38	and	and	CCONJ	CC	_	41	cc	_	_
39	grown	grow	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	41	amod	_	_
40	-	-	PUNCT	HYPH	_	41	punct	_	_
41	ups	up	NOUN	NNS	Number=Plur	13	conj	_	_
42	without	without	ADP	IN	_	44	case	_	_
43	the	the	DET	DT	Definite=Def|PronType=Art	44	det	_	_
44	change	change	NOUN	NN	Number=Sing	41	nmod	_	_
45	,	,	PUNCT	,	_	47	punct	_	_
46	who	who	PRON	WP	PronType=Rel	47	nsubj	_	_
47	get	get	VERB	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	41	acl:relcl	_	_
48	tummy	tummy	NOUN	NN	Number=Sing	49	compound	_	_
49	trouble	trouble	NOUN	NN	Number=Sing	47	obj	_	_
50	from	from	ADP	IN	_	51	case	_	_
51	milk	milk	NOUN	NN	Number=Sing	47	obl	_	Agree=R5-strong|Haiku=49:nmod
52	,	,	PUNCT	,	_	11	punct	_	_
53	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	54	aux:pass	_	_
54	called	call	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	conj	_	_
55	lactose	lactose	NOUN	NN	Number=Sing	56	compound	_	_
56	intolerant	intolerant	ADJ	JJ	Degree=Pos	54	xcomp	_	_
57	.	.	PUNCT	.	_	3	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 | **stop** | present | Most mammals |  |  |  |  |  | vn stop-55.4-1-1 «NP V S\_ING»: agent=Affector clause=Eventuality |
| 2 | **digest** | gerund | Most mammals *not said here* | milk |  |  | after babyhood |  | tree rules |
| 3 | **keep** | past | people and a change and grown ups without the change | cows |  |  |  | for thousands of years | vn keep-15.2 «NP V NP»: agent=Agent cow=Theme |
| 4 | **keep** | present | a change | milk and digestion spread |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent milk=Theme |
| 5 | **is a** | present | milk | a recent example |  |  |  | of human evolution | tree rules |
| 6 | **grow** | participle |  |  |  |  |  |  | vn appear-48.1.1 «NP V»: agent=Theme |
| 7 | **get** | present | grown ups without the change | tummy trouble |  | milk |  |  | vn get-13.5.1-1 «NP V NP PP.source»: agent=Agent trouble=Theme from milk=Source |
| 8 | **call** | present · passive | Most mammals *not said here* |  |  | places |  | intolerant *property* | vn initiate\_communication-37.4.2-1 «NP V» |

<!-- .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:279-natural-selection-we-can-watch-moths-finches-germs-and-tuskless-elephants.lesson:15`.

**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): 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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