---
title: Yoghurt is made by bacteria that turn milk sugar into acid, which th… — The microscopic world: bacteria, good and bad · tree and pragmatics
description: Yoghurt is made by bacteria that turn milk sugar into acid, which thickens the milk and makes it sour; bacteria also help make cheese, pickles, sauerkraut and sourdough bread. Who acts: bacteria, acid. A sentence of the lesson «The microscopic world: bacteria, good and bad» of the biology course of 
---

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# The microscopic world: bacteria, good and bad, sentence 5

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Yoghurt is made by bacteria that turn milk sugar into acid, which thickens the milk and makes it sour; bacteria also help make cheese, pickles, sauerkraut and sourdough bread.

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**Who acts:** bacteria, acid · **What happens:** make, turn, thicken, help · **To what, where:** Yoghurt, milk sugar, acid, milk, cheese

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This is a sentence of the lesson «The microscopic world: bacteria, good and bad» 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 (bacteria, acid), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:257-the-microscopic-world-bacteria-good-and-bad.lesson:5
# text = Yoghurt is made by bacteria that turn milk sugar into acid, which thickens the milk and makes it sour; bacteria also help make cheese, pickles, sauerkraut and sourdough bread.
# source = school lesson (ours)
# course = biology
# lesson = 257-the-microscopic-world-bacteria-good-and-bad.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, R7-rel-agree ×2, R8-pos-agree ×1
1	Yoghurt	yoghurt	NOUN	NN	Number=Sing	3	nsubj:pass	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	made	make	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	by	by	ADP	IN	_	5	case	_	_
5	bacteria	bacterium	NOUN	NNS	Number=Plur	3	obl	_	_
6	that	that	PRON	WDT	PronType=Rel	7	nsubj	_	_
7	turn	turn	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	acl:relcl	_	_
8	milk	milk	NOUN	NN	Number=Sing	9	compound	_	_
9	sugar	sugar	NOUN	NN	Number=Sing	7	obj	_	_
10	into	into	ADP	IN	_	11	case	_	_
11	acid	acid	NOUN	NN	Number=Sing	7	obl	_	_
12	,	,	PUNCT	,	_	14	punct	_	_
13	which	which	PRON	WDT	PronType=Rel	14	nsubj	_	_
14	thickens	thicken	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	11	acl:relcl	_	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
16	milk	milk	NOUN	NN	Number=Sing	14	obj	_	_
17	and	and	CCONJ	CC	_	18	cc	_	_
18	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	conj	_	_
19	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	18	obj	_	_
20	sour	sour	ADJ	JJ	Degree=Pos	18	xcomp	_	_
21	;	;	PUNCT	,	_	3	punct	_	_
22	bacteria	bacterium	NOUN	NNS	Number=Plur	24	nsubj	_	Agree=R8-pos-agree|Haiku=24:nsubj|HaikuPos=NOUN:NN:Number=Sing
23	also	also	ADV	RB	_	24	advmod	_	Agree=R5-strong|Haiku=25:advmod
24	help	help	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	parataxis	_	Agree=R7-rel-agree|Haiku=3:conj
25	make	make	VERB	VB	VerbForm=Inf	24	xcomp	_	_
26	cheese	cheese	NOUN	NN	Number=Sing	25	obj	_	_
27	,	,	PUNCT	,	_	28	punct	_	_
28	pickles	pickle	NOUN	NNS	Number=Plur	26	conj	_	Agree=R5-strong|Haiku=25:obj
29	,	,	PUNCT	,	_	30	punct	_	_
30	sauerkraut	sauerkraut	NOUN	NN	Number=Sing	28	conj	_	_
31	and	and	CCONJ	CC	_	33	cc	_	_
32	sourdough	sourdough	NOUN	NN	Number=Sing	33	compound	_	Agree=R7-rel-agree|Haiku=33:amod|HaikuPos=ADJ:JJ:Degree=Pos
33	bread	bread	NOUN	NN	Number=Sing	30	conj	_	_
34	.	.	PUNCT	.	_	3	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 | **make** | present · passive | bacteria | Yoghurt |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset subject=Product |
| 2 | **turn** | present | bacteria | milk sugar |  | acid |  |  | vn roll-51.3.1 «NP V NP PP.trajectory»: agent=Agent sugar=Theme into acid=Trajectory |
| 3 | **thicken** | present | acid | the milk |  |  |  |  | vn other\_cos-45.4 «NP V NP.patient»: agent=Agent milk=Patient |
| 4 | **make** | present | acid *not said here* | milk |  |  |  | sour *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset it=Product |
| 5 | **help** | present | bacteria |  |  |  |  |  | vn help-72.1-1-1 «NP V NP S\_INF»: agent=Agent clause=Theme |
| 6 | **make** | infinitive | bacteria *not said here* | cheese and pickles and sauerkraut and sourdough bread |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset cheese=Product |

<!-- .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:257-the-microscopic-world-bacteria-good-and-bad.lesson:5`.

**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, R7-rel-agree ×2, R8-pos-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](https://md.mova.elamur.ai/free/en/releases/0.4/).

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