How scientists find out: naturalists, Darwin, the microscope and wildlife filming, sentence 14

A fair test changes only one thing at a time and keeps everything else the same, and scientists repeat experiments to check that a result is not luck.

Who acts: fair test, scientists, result · What happens: change, keep, repeat, check, not be · To what, where: one thing, everything, experiments, luck

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 (fair test, scientists, result), what happens, when and where, as Mova's frames read it from the tree.

The tree

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	A	a	DET	Definite=Ind PronType=Art	3 test	det
2	fair	fair	ADJ	Degree=Pos	3 test	amod
3	test	test	NOUN	Number=Sing	4 changes	nsubj
4	changes	change	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
5	only	only	ADV	_	7 thing	advmod
6	one	one	NUM	NumForm=Word NumType=Card	7 thing	nummod
7	thing	thing	NOUN	Number=Sing	4 changes	obj
8	at	at	ADP	_	10 time	case
9	a	a	DET	Definite=Ind PronType=Art	10 time	det
10	time	time	NOUN	Number=Sing	7 thing	nmod
11	and	and	CCONJ	_	12 keeps	cc
12	keeps	keep	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	4 changes	conj
13	everything	everything	PRON	Number=Sing PronType=Tot	12 keeps	obj
14	else	else	ADV	_	13 everything	advmod
15	the	the	DET	Definite=Def PronType=Art	16 same	det
16	same	same	ADJ	Degree=Pos	12 keeps	xcomp
17	,	,	PUNCT	_	20 repeat	punct
18	and	and	CCONJ	_	20 repeat	cc
19	scientists	scientist	NOUN	Number=Plur	20 repeat	nsubj
20	repeat	repeat	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	4 changes	conj
21	experiments	experiment	NOUN	Number=Plur	20 repeat	obj
22	to	to	PART	_	23 check	mark
23	check	check	VERB	VerbForm=Inf	20 repeat	advcl
24	that	that	SCONJ	_	29 luck	mark
25	a	a	DET	Definite=Ind PronType=Art	26 result	det
26	result	result	NOUN	Number=Sing	29 luck	nsubj
27	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	29 luck	cop
28	not	not	PART	Polarity=Neg	29 luck	advmod
29	luck	luck	NOUN	Number=Sing	23 check	ccomp
30	.	.	PUNCT	_	4 changes	punct

Pragmatics

No stored speech act for this sentence.

#	verb	tense, mood	who	what, whom	when	other	roles by
1	change	present	a fair test	one thing	at a time		vn dress-41.1.1-1-1 «NP V NP»: agent=Agent thing=Patient
2	keep	present	a fair test not said here	everything		same property	vn keep-15.2 «NP V NP»: agent=Agent everything=Theme
3	repeat	present	scientists	experiments			vn begin-55.1-1-1 «NP V NP»: agent=Agent experiment=Eventuality
4	check	to-infinitive	scientists not said here				vn assessment-34.1 «NP V NP»: agent=Agent
5	not is a	present	a result	luck			tree rules

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.

Licence: CC 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:14.

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.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/biology/264-how-scientists-find-out-naturalists-darwin-the-microscope-and-wildlife-filming/14/