---
title: A control group is kept without the change so you can compare the re… — Being a scientist — fair tests, guesses and evid… · tree and pragmatics
description: A control group is kept without the change so you can compare the results with it. Who acts: you. A sentence of the lesson «Being a scientist — fair tests, guesses and evidence» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Being a scientist — fair tests, guesses and evidence, sentence 8

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A control group is kept without the change so you can compare the results with it.

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**Who acts:** you · **What happens:** keep, compare · **To what, where:** control group, results

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This is a sentence of the lesson «Being a scientist — fair tests, guesses and evidence» of the world 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 (you), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:091-being-a-scientist.lesson:8
# text = A control group is kept without the change so you can compare the results with it.
# source = school lesson (ours)
# course = world
# lesson = 091-being-a-scientist.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 ×1
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	control	control	NOUN	NN	Number=Sing	3	compound	_	_
3	group	group	NOUN	NN	Number=Sing	5	nsubj:pass	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	aux:pass	_	_
5	kept	keep	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
6	without	without	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	change	change	NOUN	NN	Number=Sing	5	obl	_	_
9	so	so	ADV	RB	_	12	advmod	_	Agree=R7-rel-agree|Haiku=12:mark|HaikuPos=SCONJ:IN:_
10	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	12	nsubj	_	_
11	can	can	AUX	MD	VerbForm=Fin	12	aux	_	_
12	compare	compare	VERB	VB	VerbForm=Inf	5	advcl	_	_
13	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
14	results	result	NOUN	NNS	Number=Plur	12	obj	_	_
15	with	with	ADP	IN	_	16	case	_	_
16	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	12	obl	_	_
17	.	.	PUNCT	.	_	5	punct	_	_
```

## Pragmatics {#pragmatics}

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No stored speech act for this sentence.

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | present · passive |  | a control group |  |  |  | without the change | vn keep-15.2 «NP V NP»: subject=Theme |
| 2 | **compare** | can | you | the results |  |  |  | with result | vn amalgamate-22.2-2 «NP V NP PP.co-patient»: agent=Agent result=Patient with it=Co-Patient |

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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:world:091-being-a-scientist.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 ×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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