---
title: It is given that a desired article is obtainable with a probability… — Loot boxes and "free" skins · tree and pragmatics
description: It is given that a desired article is obtainable with a probability of one per cent per attempt, each attempt costing one pound. Determine the approximate expenditure required on average. Exam question 2 of lesson 17 «Loot boxes and "free" skins» of the money course of Mova's primary school, with th
---

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# Exam question 2 · Loot boxes and "free" skins

<!-- .ven lang=en -->
It is given that a desired article is obtainable with a probability of one per cent per attempt, each attempt costing one pound. Determine the approximate expenditure required on average.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** desired article, attempt, you · **What happens:** give, desire, be, cost, determine, require · **To what, where:** It, one pound, approximate expenditure, average

<!-- .vabout -->
This is exam question 2 of lesson 17 «Loot boxes and "free" skins» of the money course of Mova's primary school, asked in stiff, formal language. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/money/17-loot-boxes-and-free-skins/#e2).

## The question {#question}

<!-- .note -->
*Sentence 1:* It is given that a desired article is obtainable with a probability of one per cent per attempt, each attempt costing one pound.

```conllu
# sent_id = question:money:17-loot-boxes-and-free-skins:e2:1
# text = It is given that a desired article is obtainable with a probability of one per cent per attempt, each attempt costing one pound.
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj:pass	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	given	give	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	that	that	SCONJ	IN	_	9	mark	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
6	desired	desire	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	7	amod	_	_
7	article	article	NOUN	NN	Number=Sing	9	nsubj	_	_
8	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	cop	_	_
9	obtainable	obtainable	ADJ	JJ	Degree=Pos	3	advcl	_	_
10	with	with	ADP	IN	_	12	case	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
12	probability	probability	NOUN	NN	Number=Sing	9	obl	_	_
13	of	of	ADP	IN	_	16	case	_	_
14	one	one	NUM	CD	NumForm=Word|NumType=Card	16	nummod	_	_
15	per	per	NOUN	NN	Number=Sing	16	compound	_	_
16	cent	cent	NOUN	NN	Number=Sing	12	nmod	_	_
17	per	per	ADP	IN	_	18	case	_	_
18	attempt	attempt	NOUN	NN	Number=Sing	16	nmod	_	SpaceAfter=No
19	,	,	PUNCT	,	_	21	punct	_	_
20	each	each	DET	DT	PronType=Tot	21	det	_	_
21	attempt	attempt	NOUN	NN	Number=Sing	18	appos	_	_
22	costing	cost	VERB	VBG	VerbForm=Ger	21	acl	_	_
23	one	one	NUM	CD	NumForm=Word|NumType=Card	24	nummod	_	_
24	pound	pound	NOUN	NN	Number=Sing	22	obj	_	SpaceAfter=No
25	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **give** | present · passive |  | It |  |  |  |  | vn give-13.1-1 «NP V NP»: subject=Theme |
| 2 | **desire** | participle |  |  |  |  |  |  | vn want-32.1-1-1 «NP V NP S\_INF»: agent=Pivot |
| 3 | **is** | present | a desired article |  |  |  |  | with a probability of one per cent per attempt; obtainable *property* | tree rules |
| 4 | **cost** | gerund | each attempt *not said here* | one pound |  |  |  |  | vn cost-54.2 «NP V NP.value»: agent=Theme pound=Value |

<!-- .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.

<!-- .note -->
*Sentence 2:* Determine the approximate expenditure required on average.

```conllu
# sent_id = question:money:17-loot-boxes-and-free-skins:e2:2
# text = Determine the approximate expenditure required on average.
1	Determine	determine	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	approximate	approximate	ADJ	JJ	Degree=Pos	4	amod	_	_
4	expenditure	expenditure	NOUN	NN	Number=Sing	1	obj	_	_
5	required	require	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	acl	_	_
6	on	on	ADP	IN	_	7	case	_	_
7	average	average	NOUN	NN	Number=Sing	5	obl	_	SpaceAfter=No
8	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **determine** | imperative | you *not said here* | the approximate expenditure |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent expenditure=Topic |
| 2 | **require** | participle |  | the approximate expenditure *not said here* |  | average |  |  | vn require-103-1 «NP V NP S\_INF»: agent=Theme |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Ten pounds

```conllu
# sent_id = question:money:17-loot-boxes-and-free-skins:e2:o1:1
# text = Ten pounds
1	Ten	ten	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	pounds	pound	NOUN	NNS	Number=Plur	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 2 {#o2}

<!-- .ven lang=en -->
One thousand pounds

```conllu
# sent_id = question:money:17-loot-boxes-and-free-skins:e2:o2:1
# text = One thousand pounds
1	One	one	NUM	CD	NumForm=Word|NumType=Card	2	compound	_	_
2	thousand	thousand	NUM	CD	NumForm=Word|NumType=Card	3	nummod	_	_
3	pounds	pound	NOUN	NNS	Number=Plur	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 3 {#o3}

<!-- .ven lang=en -->
One pound

```conllu
# sent_id = question:money:17-loot-boxes-and-free-skins:e2:o3:1
# text = One pound
1	One	one	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	pound	pound	NOUN	NN	Number=Sing	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 4 · ✓ the right answer {#o4}

<!-- .ven lang=en -->
One hundred pounds

```conllu
# sent_id = question:money:17-loot-boxes-and-free-skins:e2:o4:1
# text = One hundred pounds
1	One	one	NUM	CD	NumForm=Word|NumType=Card	2	compound	_	_
2	hundred	hundred	NUM	CD	NumForm=Word|NumType=Card	3	nummod	_	_
3	pounds	pound	NOUN	NNS	Number=Plur	0	root	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

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**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License.

<!-- /div -->

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- ← previous: [Loot boxes and "free" skins, exam 1](https://md.mova.elamur.ai/free/en/corpora/questions/money/17-loot-boxes-and-free-skins/e1/)
- next →: [Loot boxes and "free" skins, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/money/17-loot-boxes-and-free-skins/e3/)
- ↑ back to [Loot boxes and "free" skins](https://md.mova.elamur.ai/free/en/corpora/questions/money/17-loot-boxes-and-free-skins/)