---
title: Identify the original source of the energy in almost every food chain. — Food chains and food webs · tree and pragmatics
description: Identify the original source of the energy in almost every food chain. Exam question 4 of lesson 26 «Food chains and food webs» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/world/26-food-chains-and-webs/e4/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [World](https://md.mova.elamur.ai/free/en/corpora/questions/world/) / [Food chains and food webs](https://md.mova.elamur.ai/free/en/corpora/questions/world/26-food-chains-and-webs/) / e4

# Exam question 4 · Food chains and food webs

<!-- .ven lang=en -->
Identify the original source of the energy in almost every food chain.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 4 · wrong ✗ · **Who acts:** you · **What happens:** identify · **To what, where:** original source, food chain

<!-- .vabout -->
This is exam question 4 of lesson 26 «Food chains and food webs» of the world 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/world/26-food-chains-and-webs/#e4).

## The question {#question}

```conllu
# sent_id = question:world:26-food-chains-and-webs:e4:1
# text = Identify the original source of the energy in almost every food chain.
1	Identify	identify	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	original	original	ADJ	JJ	Degree=Pos	4	amod	_	_
4	source	source	NOUN	NN	Number=Sing	1	obj	_	_
5	of	of	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	energy	energy	NOUN	NN	Number=Sing	4	nmod	_	_
8	in	in	ADP	IN	_	12	case	_	_
9	almost	almost	ADV	RB	_	12	advmod	_	_
10	every	every	DET	DT	PronType=Tot	12	det	_	_
11	food	food	NOUN	NN	Number=Sing	12	compound	_	_
12	chain	chain	NOUN	NN	Number=Sing	1	obl	_	SpaceAfter=No
13	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **identify** | imperative | you *not said here* | the original source of the energy |  | every food chain |  |  | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent source=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.

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
The decomposers

```conllu
# sent_id = question:world:26-food-chains-and-webs:e4:o1:1
# text = The decomposers
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	decomposers	decomposer	NOUN	NNS	Number=Plur	0	root	_	_
```

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

### Option 2 {#o2}

<!-- .ven lang=en -->
Water

```conllu
# sent_id = question:world:26-food-chains-and-webs:e4:o2:1
# text = Water
1	Water	water	NOUN	NN	Number=Sing	0	root	_	_
```

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

### Option 3 {#o3}

<!-- .ven lang=en -->
The soil

```conllu
# sent_id = question:world:26-food-chains-and-webs:e4:o3:1
# text = The soil
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	soil	soil	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 -->
The Sun

```conllu
# sent_id = question:world:26-food-chains-and-webs:e4:o4:1
# text = The Sun
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	Sun	Sun	PROPN	NNP	Number=Sing	0	root	_	_
```

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

<!-- div src -->

**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 -->

<!-- pn -->
- ← previous: [Food chains and food webs, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/world/26-food-chains-and-webs/e3/)
- next →: [Habitats and adaptations, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/world/27-habitats-and-adaptations/t1/)
- ↑ back to [Food chains and food webs](https://md.mova.elamur.ai/free/en/corpora/questions/world/26-food-chains-and-webs/)