---
title: In a fair test only one thing is changed and everything else is kept… — Being a scientist — fair tests, guesses and evid… · tree and pragmatics
description: In a fair test only one thing is changed and everything else is kept the same. 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 6

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In a fair test only one thing is changed and everything else is kept the same.

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**What happens:** change, keep · **To what, where:** one thing, fair test, everything

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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: 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:6
# text = In a fair test only one thing is changed and everything else is kept the same.
# 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	In	in	ADP	IN	_	4	case	_	_
2	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
3	fair	fair	ADJ	JJ	Degree=Pos	4	amod	_	_
4	test	test	NOUN	NN	Number=Sing	9	obl	_	_
5	only	only	ADV	RB	_	6	advmod	_	_
6	one	one	NUM	CD	NumForm=Word|NumType=Card	7	nummod	_	_
7	thing	thing	NOUN	NN	Number=Sing	9	nsubj:pass	_	_
8	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	aux:pass	_	_
9	changed	change	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
10	and	and	CCONJ	CC	_	14	cc	_	_
11	everything	everything	PRON	NN	Number=Sing|PronType=Tot	14	nsubj:pass	_	_
12	else	else	ADV	RB	_	11	advmod	_	_
13	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	aux:pass	_	_
14	kept	keep	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	9	conj	_	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
16	same	same	ADJ	JJ	Degree=Pos	14	xcomp	_	Agree=R7-rel-agree|Haiku=14:obj
17	.	.	PUNCT	.	_	9	punct	_	_
```

## Pragmatics {#pragmatics}

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- 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 | **change** | present · passive |  | one thing |  | a fair test |  |  | vn dress-41.1.1-1-1 «NP V NP»: subject=Patient |
| 2 | **keep** | present · passive |  | everything |  |  |  | same *property* | vn keep-15.2 «NP V NP»: subject=Theme |

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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:6`.

**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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