---
title: A colander or a filter lets small things through and keeps bigger th… — Separating mixtures · tree and pragmatics
description: A colander or a filter lets small things through and keeps bigger things back; a tea bag is a filter too. Who acts: colander, tea bag. A sentence of the lesson «Separating mixtures» of the chemistry course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/chemistry/8-separating-mixtures/5/)

<!-- 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/) / [Chemistry](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/) / [Separating mixtures](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/8-separating-mixtures/) / 5

# Separating mixtures, sentence 5

<!-- .ven lang=en -->
A colander or a filter lets small things through and keeps bigger things back; a tea bag is a filter too.

<!-- .vintro -->
**Who acts:** colander, tea bag · **What happens:** let, keep back, be · **To what, where:** small things, bigger things, filter

<!-- .vabout -->
This is a sentence of the lesson «Separating mixtures» of the chemistry 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 (colander, tea bag), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:chemistry:008-separating-mixtures.lesson:5
# text = A colander or a filter lets small things through and keeps bigger things back; a tea bag is a filter too.
# source = school lesson (ours)
# course = chemistry
# lesson = 008-separating-mixtures.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): no change
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	colander	colander	NOUN	NN	Number=Sing	6	nsubj	_	_
3	or	or	CCONJ	CC	_	5	cc	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	filter	filter	NOUN	NN	Number=Sing	2	conj	_	_
6	lets	let	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	small	small	ADJ	JJ	Degree=Pos	8	amod	_	_
8	things	thing	NOUN	NNS	Number=Plur	6	obj	_	_
9	through	through	ADV	RB	_	6	advmod	_	_
10	and	and	CCONJ	CC	_	11	cc	_	_
11	keeps	keep	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	conj	_	_
12	bigger	big	ADJ	JJR	Degree=Cmp	13	amod	_	_
13	things	thing	NOUN	NNS	Number=Plur	11	obj	_	_
14	back	back	ADV	RB	_	11	advmod	_	_
15	;	;	PUNCT	,	_	21	punct	_	_
16	a	a	DET	DT	Definite=Ind|PronType=Art	18	det	_	_
17	tea	tea	NOUN	NN	Number=Sing	18	compound	_	_
18	bag	bag	NOUN	NN	Number=Sing	21	nsubj	_	_
19	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	21	cop	_	_
20	a	a	DET	DT	Definite=Ind|PronType=Art	21	det	_	_
21	filter	filter	NOUN	NN	Number=Sing	11	parataxis	_	_
22	too	too	ADV	RB	_	21	advmod	_	_
23	.	.	PUNCT	.	_	6	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 | **let** | present | a colander or a filter | small things |  |  |  | through *property* | vn give-13.1-1 «NP V NP»: agent=Agent thing=Theme |
| 2 | **keep back** | present | a colander or a filter *not said here* | bigger things |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent thing=Theme |
| 3 | **is a** | present | a tea bag | a filter |  |  |  |  | tree rules |

<!-- .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:chemistry:008-separating-mixtures.lesson:5`.

**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): no change. **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: [Separating mixtures, 4](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/8-separating-mixtures/4/)
- next →: [Separating mixtures, 6](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/8-separating-mixtures/6/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/8-separating-mixtures/)