---
title: A pond food chain can be tiny green algae, water fleas, sticklebacks… — Food chains: sun, plants, plant-eaters, meat-eat… · tree and pragmatics
description: A pond food chain can be tiny green algae, water fleas, sticklebacks, then a heron or a pike; a jar of pond water can hold thousands of living things. Who acts: pond food chain, jar. A sentence of the lesson «Food chains: sun, plants, plant-eaters, meat-eaters» of the biology course of Mova's primar
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/46-food-chains/7/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Biology](https://md.mova.elamur.ai/free/en/corpora/school/biology/) / [Food chains: sun, plants, plant-eaters…](https://md.mova.elamur.ai/free/en/corpora/school/biology/46-food-chains/) / 7

# Food chains: sun, plants, plant-eaters, meat-eaters, sentence 7

<!-- .ven lang=en -->
A pond food chain can be tiny green algae, water fleas, sticklebacks, then a heron or a pike; a jar of pond water can hold thousands of living things.

<!-- .vintro -->
**Who acts:** pond food chain, jar · **What happens:** be, hold · **To what, where:** tiny green algae, thousands

<!-- .vabout -->
This is a sentence of the lesson «Food chains: sun, plants, plant-eaters, meat-eaters» of the biology 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 (pond food chain, jar), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:046-food-chains.lesson:7
# text = A pond food chain can be tiny green algae, water fleas, sticklebacks, then a heron or a pike; a jar of pond water can hold thousands of living things.
# source = school lesson (ours)
# course = biology
# lesson = 046-food-chains.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): R6-punct-agree ×1
1	A	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
2	pond	pond	NOUN	NN	Number=Sing	4	compound	_	_
3	food	food	NOUN	NN	Number=Sing	4	compound	_	_
4	chain	chain	NOUN	NN	Number=Sing	9	nsubj	_	_
5	can	can	AUX	MD	VerbForm=Fin	9	aux	_	_
6	be	be	AUX	VB	VerbForm=Inf	9	cop	_	_
7	tiny	tiny	ADJ	JJ	Degree=Pos	9	amod	_	_
8	green	green	ADJ	JJ	Degree=Pos	9	amod	_	_
9	algae	alga	NOUN	NNS	Number=Plur	29	parataxis	_	_
10	,	,	PUNCT	,	_	12	punct	_	_
11	water	water	NOUN	NN	Number=Sing	12	compound	_	_
12	fleas	flea	NOUN	NNS	Number=Plur	9	conj	_	_
13	,	,	PUNCT	,	_	14	punct	_	_
14	sticklebacks	stickleback	NOUN	NNS	Number=Plur	9	conj	_	_
15	,	,	PUNCT	,	_	18	punct	_	_
16	then	then	ADV	RB	PronType=Dem	18	advmod	_	_
17	a	a	DET	DT	Definite=Ind|PronType=Art	18	det	_	_
18	heron	heron	NOUN	NN	Number=Sing	9	conj	_	_
19	or	or	CCONJ	CC	_	21	cc	_	_
20	a	a	DET	DT	Definite=Ind|PronType=Art	21	det	_	_
21	pike	pike	NOUN	NN	Number=Sing	18	conj	_	_
22	;	;	PUNCT	:	_	24	punct	_	_
23	a	a	DET	DT	Definite=Ind|PronType=Art	24	det	_	_
24	jar	jar	NOUN	NN	Number=Sing	29	nsubj	_	_
25	of	of	ADP	IN	_	27	case	_	_
26	pond	pond	NOUN	NN	Number=Sing	27	compound	_	_
27	water	water	NOUN	NN	Number=Sing	24	nmod	_	_
28	can	can	AUX	MD	VerbForm=Fin	29	aux	_	_
29	hold	hold	VERB	VB	VerbForm=Inf	0	root	_	_
30	thousands	thousand	NOUN	NNS	Number=Plur	29	obj	_	_
31	of	of	ADP	IN	_	33	case	_	_
32	living	living	ADJ	JJ	Degree=Pos	33	amod	_	_
33	things	thing	NOUN	NNS	Number=Plur	30	nmod	_	_
34	.	.	PUNCT	.	_	9	punct	_	Agree=R6-punct-agree|Haiku=29: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 | **is a** | can | a pond food chain | tiny green algae and water fleas and sticklebacks and a heron or a pike |  |  |  |  | tree rules |
| 2 | **hold** | can | a jar of pond water | thousands of living things |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent thousand=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.

<!-- div src -->

**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:biology:046-food-chains.lesson:7`.

**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): R6-punct-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/).

<!-- /div -->

<!-- pn -->
- ← previous: [Food chains: sun, plants, plant-eaters…, 6](https://md.mova.elamur.ai/free/en/corpora/school/biology/46-food-chains/6/)
- next →: [Food chains: sun, plants, plant-eaters…, 9](https://md.mova.elamur.ai/free/en/corpora/school/biology/46-food-chains/9/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/46-food-chains/)