---
title: It is given that a normal film displays approximately twenty-five pi… — How nature documentaries are made: hid… · tree and pragmatics
description: It is given that a normal film displays approximately twenty-five pictures per second. Ascertain the number of pictures displayed in a period of ten seconds. Exam question 4 of lesson 394 «How nature documentaries are made: hides, camera traps, drones and years of waiting» of the biology course of M
---

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# Exam question 4 · How nature documentaries are made: hides, camera traps, dr…

<!-- .ven lang=en -->
It is given that a normal film displays approximately twenty-five pictures per second. Ascertain the number of pictures displayed in a period of ten seconds.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** normal film, you · **What happens:** give, display, ascertain · **To what, where:** It, five pictures, number, pictures, period

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This is exam question 4 of lesson 394 «How nature documentaries are made: hides, camera traps, drones and years of waiting» of the biology 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/biology/394-how-nature-documentaries-are-made-hides-camera-traps-drones-and-years-of-waiting/#e4).

## The question {#question}

<!-- .note -->
*Sentence 1:* It is given that a normal film displays approximately twenty-five pictures per second.

```conllu
# sent_id = question:biology:394-how-nature-documentaries-are-made-hides-camera-traps-drones-and-years-of-waiting:e4:1
# text = It is given that a normal film displays approximately twenty-five pictures per second.
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	_	8	mark	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
6	normal	normal	ADJ	JJ	Degree=Pos	7	amod	_	_
7	film	film	NOUN	NN	Number=Sing	8	nsubj	_	_
8	displays	display	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	advcl	_	_
9	approximately	approximately	ADV	RB	_	12	advmod	_	_
10	twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	12	compound	_	SpaceAfter=No
11	-	-	PUNCT	HYPH	_	10	punct	_	SpaceAfter=No
12	five	five	NUM	CD	NumForm=Word|NumType=Card	13	nummod	_	_
13	pictures	picture	NOUN	NNS	Number=Plur	8	obj	_	_
14	per	per	ADP	IN	_	15	case	_	_
15	second	second	NOUN	NN	Number=Sing	13	nmod	_	SpaceAfter=No
16	.	.	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 | **display** | present | a normal film | five pictures |  |  |  | per second | vn reflexive\_appearance-48.1.2 «NP V NP»: agent=Agent picture=Theme |

<!-- .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:* Ascertain the number of pictures displayed in a period of ten seconds.

```conllu
# sent_id = question:biology:394-how-nature-documentaries-are-made-hides-camera-traps-drones-and-years-of-waiting:e4:2
# text = Ascertain the number of pictures displayed in a period of ten seconds.
1	Ascertain	ascertain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	number	number	NOUN	NN	Number=Sing	1	obj	_	_
4	of	of	ADP	IN	_	5	case	_	_
5	pictures	picture	NOUN	NNS	Number=Plur	3	nmod	_	_
6	displayed	display	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	acl	_	_
7	in	in	ADP	IN	_	9	case	_	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
9	period	period	NOUN	NN	Number=Sing	6	obl	_	_
10	of	of	ADP	IN	_	12	case	_	_
11	ten	ten	NUM	CD	NumForm=Word|NumType=Card	12	nummod	_	_
12	seconds	second	NOUN	NNS	Number=Plur	9	nmod	_	SpaceAfter=No
13	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ascertain** | imperative | you *not said here* | the number of pictures |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent number=Topic |
| 2 | **display** | participle |  | pictures *not said here* |  | a period of ten seconds |  |  | vn reflexive\_appearance-48.1.2 «NP V NP»: agent=Agent |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Thirty-five

```conllu
# sent_id = question:biology:394-how-nature-documentaries-are-made-hides-camera-traps-drones-and-years-of-waiting:e4:o1:1
# text = Thirty-five
1	Thirty	thirty	NUM	CD	NumForm=Word|NumType=Card	0	root	_	SpaceAfter=No
2	-	-	PUNCT	HYPH	_	3	punct	_	SpaceAfter=No
3	five	five	NUM	CD	NumForm=Word|NumType=Card	1	conj	_	_
```

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

### Option 2 {#o2}

<!-- .ven lang=en -->
Two thousand five hundred

```conllu
# sent_id = question:biology:394-how-nature-documentaries-are-made-hides-camera-traps-drones-and-years-of-waiting:e4:o2:1
# text = Two thousand five hundred
1	Two	two	NUM	CD	NumForm=Word|NumType=Card	2	compound	_	_
2	thousand	thousand	NUM	CD	NumForm=Word|NumType=Card	3	compound	_	_
3	five	five	NUM	CD	NumForm=Word|NumType=Card	4	compound	_	_
4	hundred	hundred	NUM	CD	NumForm=Word|NumType=Card	0	root	_	_
```

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

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Two hundred and fifty

```conllu
# sent_id = question:biology:394-how-nature-documentaries-are-made-hides-camera-traps-drones-and-years-of-waiting:e4:o3:1
# text = Two hundred and fifty
1	Two	two	NUM	CD	NumForm=Word|NumType=Card	2	compound	_	_
2	hundred	hundred	NUM	CD	NumForm=Word|NumType=Card	0	root	_	_
3	and	and	CCONJ	CC	_	4	cc	_	_
4	fifty	fifty	NUM	CD	NumForm=Word|NumType=Card	2	conj	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
Twenty-five

```conllu
# sent_id = question:biology:394-how-nature-documentaries-are-made-hides-camera-traps-drones-and-years-of-waiting:e4:o4:1
# text = Twenty-five
1	Twenty	twenty	NUM	CD	NumForm=Word|NumType=Card	0	root	_	SpaceAfter=No
2	-	-	PUNCT	HYPH	_	1	punct	_	SpaceAfter=No
3	five	five	NUM	CD	NumForm=Word|NumType=Card	1	flat	_	_
```

<!-- .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.

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- ← previous: [How nature documentaries are made: hid…, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/394-how-nature-documentaries-are-made-hides-camera-traps-drones-and-years-of-waiting/e3/)
- next →: [Documentaries vs cartoons: added sound…, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/biology/395-documentaries-vs-cartoons-added-sounds-edited-stories-and-what-is-real/t1/)
- ↑ back to [How nature documentaries are made: hides, camera traps, drones and years of waiting](https://md.mova.elamur.ai/free/en/corpora/questions/biology/394-how-nature-documentaries-are-made-hides-camera-traps-drones-and-years-of-waiting/)