---
title: In "guess my number" with yes-or-no answers, halving each time is be… — Olympiad: thinking like a machine, Bebras puzzle… · tree and pragmatics
description: In "guess my number" with yes-or-no answers, halving each time is best: 4 questions always find a number from 1 to 16, 5 from 1 to 32, and 7 from 1 to 100. Who acts: halving, 4 questions. A sentence of the lesson «Olympiad: thinking like a machine, Bebras puzzles ★★★» of the ai course of Mova's prim
---

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# Olympiad: thinking like a machine, Bebras puzzles ★★★, sentence 5

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In "guess my number" with yes-or-no answers, halving each time is best: 4 questions always find a number from 1 to 16, 5 from 1 to 32, and 7 from 1 to 100.

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**Who acts:** halving, 4 questions · **What happens:** guess, halve, be, find · **To what, where:** number, 1

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This is a sentence of the lesson «Olympiad: thinking like a machine, Bebras puzzles ★★★» of the ai 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 (halving, 4 questions), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:ai:031-olympiad-thinking-like-a-machine.lesson:5
# text = In "guess my number" with yes-or-no answers, halving each time is best: 4 questions always find a number from 1 to 16, 5 from 1 to 32, and 7 from 1 to 100.
# source = school lesson (ours)
# course = ai
# lesson = 031-olympiad-thinking-like-a-machine.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 ×1, R6-punct-agree ×1, R7-rel-agree ×3, R8-pos-agree ×1
1	In	in	ADP	IN	_	3	mark	_	Agree=R7-rel-agree|Haiku=3:case
2	"	"	PUNCT	``	_	3	punct	_	_
3	guess	guess	VERB	VB	VerbForm=Inf	19	obl	_	_
4	my	my	PRON	PRP$	Case=Gen|Number=Sing|Person=1|Poss=Yes|PronType=Prs	5	nmod:poss	_	_
5	number	number	NOUN	NN	Number=Sing	3	obj	_	_
6	"	"	PUNCT	''	_	3	punct	_	_
7	with	with	ADP	IN	_	13	case	_	_
8	yes	yes	INTJ	UH	Polarity=Pos	13	discourse	_	_
9	-	-	PUNCT	HYPH	_	8	punct	_	_
10	or	or	CCONJ	CC	_	13	cc	_	_
11	-	-	PUNCT	HYPH	_	10	punct	_	_
12	no	no	DET	DT	PronType=Neg	13	det	_	_
13	answers	answer	NOUN	NNS	Number=Plur	3	obl	_	Agree=R7-rel-agree|Haiku=3:nmod
14	,	,	PUNCT	,	_	15	punct	_	_
15	halving	halve	VERB	VBG	VerbForm=Ger	19	csubj	_	_
16	each	each	DET	DT	PronType=Tot	17	det	_	_
17	time	time	NOUN	NN	Number=Sing	15	obj	_	_
18	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	19	cop	_	_
19	best	good	ADJ	JJS	Degree=Sup	0	root	_	_
20	:	:	PUNCT	:	_	22	punct	_	_
21	4	4	NUM	CD	NumForm=Digit|NumType=Card	22	nummod	_	_
22	questions	question	NOUN	NNS	Number=Plur	24	nsubj	_	_
23	always	always	ADV	RB	PronType=Tot	24	advmod	_	_
24	find	find	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	19	parataxis	_	Agree=R8-pos-agree|Haiku=19:parataxis|HaikuPos=VERB:VB:Mood=Imp|VerbForm=Fin
25	a	a	DET	DT	Definite=Ind|PronType=Art	26	det	_	_
26	number	number	NOUN	NN	Number=Sing	24	obj	_	_
27	from	from	ADP	IN	_	28	case	_	_
28	1	1	NUM	CD	NumForm=Digit|NumType=Card	26	nmod	_	_
29	to	to	ADP	IN	_	30	case	_	_
30	16	16	NUM	CD	NumForm=Digit|NumType=Card	28	nmod	_	_
31	,	,	PUNCT	,	_	32	punct	_	_
32	5	5	NUM	CD	NumForm=Digit|NumType=Card	28	conj	_	Agree=R7-rel-agree|Haiku=28:appos
33	from	from	ADP	IN	_	36	case	_	_
34	1	1	NUM	CD	NumForm=Digit|NumType=Card	32	nmod	_	Agree=R5-strong|Haiku=36:compound
35	to	to	ADP	IN	_	36	case	_	_
36	32	32	NUM	CD	NumForm=Digit|NumType=Card	32	nmod	_	_
37	,	,	PUNCT	,	_	39	punct	_	_
38	and	and	CCONJ	CC	_	39	cc	_	_
39	7	7	NUM	CD	NumForm=Digit|NumType=Card	32	flat	_	_
40	from	from	ADP	IN	_	41	case	_	_
41	1	1	NUM	CD	NumForm=Digit|NumType=Card	28	flat	_	_
42	to	to	ADP	IN	_	43	case	_	_
43	100	100	NUM	CD	NumForm=Digit|NumType=Card	41	nmod	_	_
44	.	.	PUNCT	.	_	19	punct	_	Agree=R6-punct-agree|Haiku=24:punct
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: pos
- teacher: changed act=assert

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **guess** *in a quote* | infinitive |  | my number |  |  |  | with no answers | vn conjecture-29.5-1 «NP V NP»: agent=Agent number=Theme |
| 2 | **halve** | gerund |  |  |  |  | time |  | vn remedy-45.7-1 «NP V ADV-Middle»: agent=Patient |
| 3 | **is** | present | halving |  |  |  |  | good *property* | tree rules |
| 4 | **find** | present | 4 questions | a number |  | 1 to 16 |  | always *property* | vn get-13.5.1 «NP V NP PP.source»: agent=Agent number=Theme from 1=Source |

<!-- .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:ai:031-olympiad-thinking-like-a-machine.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 ×1, R6-punct-agree ×1, R7-rel-agree ×3, 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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