---
title: One drop of seawater can hold millions of viruses and bacteria and m… — The microscopic world: tardigrades, mites, plank… · tree and pragmatics
description: One drop of seawater can hold millions of viruses and bacteria and many plankton. Who acts: One drop. A sentence of the lesson «The microscopic world: tardigrades, mites, plankton and other tiny creatures» of the biology course of Mova's primary school with its dependency tree and the pragmatics of 
---

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# The microscopic world: tardigrades, mites, plankton and other tiny creatures, sentence 18

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One drop of seawater can hold millions of viruses and bacteria and many plankton.

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**Who acts:** One drop · **What happens:** hold · **To what, where:** millions

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This is a sentence of the lesson «The microscopic world: tardigrades, mites, plankton and other tiny creatures» 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 (One drop), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:259-the-microscopic-world-tardigrades-mites-plankton-and-other-tiny-creatures.lesson:18
# text = One drop of seawater can hold millions of viruses and bacteria and many plankton.
# source = school lesson (ours)
# course = biology
# lesson = 259-the-microscopic-world-tardigrades-mites-plankton-and-other-tiny-creatures.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): R5-strong ×1, R8-pos-agree ×1
1	One	one	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	drop	drop	NOUN	NN	Number=Sing	6	nsubj	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	seawater	seawater	NOUN	NN	Number=Sing	2	nmod	_	_
5	can	can	AUX	MD	VerbForm=Fin	6	aux	_	_
6	hold	hold	VERB	VB	VerbForm=Inf	0	root	_	_
7	millions	million	NOUN	NNS	Number=Plur	6	obj	_	_
8	of	of	ADP	IN	_	9	case	_	_
9	viruses	virus	NOUN	NNS	Number=Plur	7	nmod	_	_
10	and	and	CCONJ	CC	_	11	cc	_	_
11	bacteria	bacterium	NOUN	NNS	Number=Plur	9	conj	_	Agree=R5-strong|Haiku=7:conj|HaikuPos=NOUN:NN:Number=Sing
12	and	and	CCONJ	CC	_	14	cc	_	_
13	many	many	ADJ	JJ	Degree=Pos	14	amod	_	_
14	plankton	plankton	NOUN	NNS	Number=Plur	11	conj	_	Agree=R8-pos-agree|Haiku=11:conj|HaikuPos=NOUN:NN:Number=Sing
15	.	.	PUNCT	.	_	6	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **hold** | can | One drop of seawater | millions of viruses and bacteria and many plankton |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent million=Theme |

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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.

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**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:259-the-microscopic-world-tardigrades-mites-plankton-and-other-tiny-creatures.lesson:18`.

**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): R5-strong ×1, R8-pos-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/).

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