---
title: In a knockout contest, every match knocks out exactly one player, so… — Olympiad: thinking like a machine, Bebras puzzle… · tree and pragmatics
description: In a knockout contest, every match knocks out exactly one player, so 8 players need 7 matches and 16 players need 15 to find one winner. Who acts: match, 8 players, 16 players. A sentence of the lesson «Olympiad: thinking like a machine, Bebras puzzles ★★★» of the ai course of Mova's primary school 
---

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# Olympiad: thinking like a machine, Bebras puzzles ★★★, sentence 12

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In a knockout contest, every match knocks out exactly one player, so 8 players need 7 matches and 16 players need 15 to find one winner.

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**Who acts:** match, 8 players, 16 players · **What happens:** knock out, need, find · **To what, where:** one player, knockout contest, 7 matches, 15, one winner

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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 (match, 8 players, 16 players), 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:12
# text = In a knockout contest, every match knocks out exactly one player, so 8 players need 7 matches and 16 players need 15 to find one winner.
# 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): R7-rel-agree ×1
1	In	in	ADP	IN	_	4	case	_	_
2	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
3	knockout	knockout	NOUN	NN	Number=Sing	4	compound	_	_
4	contest	contest	NOUN	NN	Number=Sing	8	obl	_	_
5	,	,	PUNCT	,	_	4	punct	_	_
6	every	every	DET	DT	PronType=Tot	7	det	_	_
7	match	match	NOUN	NN	Number=Sing	8	nsubj	_	_
8	knocks	knock	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
9	out	out	ADP	RP	_	8	compound:prt	_	_
10	exactly	exactly	ADV	RB	_	11	advmod	_	_
11	one	one	NUM	CD	NumForm=Word|NumType=Card	12	nummod	_	_
12	player	player	NOUN	NN	Number=Sing	8	obj	_	_
13	,	,	PUNCT	,	_	17	punct	_	_
14	so	so	ADV	RB	_	17	advmod	_	_
15	8	8	NUM	CD	NumForm=Digit|NumType=Card	16	nummod	_	_
16	players	player	NOUN	NNS	Number=Plur	17	nsubj	_	_
17	need	need	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	8	conj	_	_
18	7	7	NUM	CD	NumForm=Digit|NumType=Card	19	nummod	_	_
19	matches	match	NOUN	NNS	Number=Plur	17	obj	_	_
20	and	and	CCONJ	CC	_	23	cc	_	_
21	16	16	NUM	CD	NumForm=Digit|NumType=Card	22	nummod	_	_
22	players	player	NOUN	NNS	Number=Plur	23	nsubj	_	_
23	need	need	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	17	conj	_	_
24	15	15	NUM	CD	NumForm=Digit|NumType=Card	23	obj	_	_
25	to	to	PART	TO	_	26	mark	_	_
26	find	find	VERB	VB	VerbForm=Inf	23	advcl	_	Agree=R7-rel-agree|Haiku=23:xcomp
27	one	one	NUM	CD	NumForm=Word|NumType=Card	28	nummod	_	_
28	winner	winner	NOUN	NN	Number=Sing	26	obj	_	_
29	.	.	PUNCT	.	_	8	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 | **knock out** | present | every match | one player |  | a knockout contest |  |  | vn throw-17.1-1 «NP V NP PP.destinations»: agent=Agent player=Theme in contest=Destination |
| 2 | **need** | present | 8 players | 7 matches |  |  |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot match=Theme |
| 3 | **need** | present | 16 players | 15 |  |  |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot 15=Theme |
| 4 | **find** | to-infinitive | 16 players *not said here* | one winner |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent winner=Topic |

<!-- .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:12`.

**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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