---
title: Carbon atoms can link into long chains and rings, which is how huge… — Molecules: when atoms join up · tree and pragmatics
description: Carbon atoms can link into long chains and rings, which is how huge molecules like sugar, wood and DNA are built. Who acts: Carbon atoms. A sentence of the lesson «Molecules: when atoms join up» of the chemistry course of Mova's primary school with its dependency tree and the pragmatics of every cla
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/chemistry/3-molecules-when-atoms-join-up/19/)

<!-- 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/) / [Molecules: when atoms join up](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/3-molecules-when-atoms-join-up/) / 19

# Molecules: when atoms join up, sentence 19

<!-- .ven lang=en -->
Carbon atoms can link into long chains and rings, which is how huge molecules like sugar, wood and DNA are built.

<!-- .vintro -->
**Who acts:** Carbon atoms · **What happens:** link, build · **To what, where:** huge molecules

<!-- .vabout -->
This is a sentence of the lesson «Molecules: when atoms join up» 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 (Carbon atoms), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:chemistry:003-molecules-when-atoms-join-up.lesson:19
# text = Carbon atoms can link into long chains and rings, which is how huge molecules like sugar, wood and DNA are built.
# source = school lesson (ours)
# course = chemistry
# lesson = 003-molecules-when-atoms-join-up.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	Carbon	carbon	NOUN	NN	_	2	compound	_	_
2	atoms	atom	NOUN	NNS	Number=Plur	4	nsubj	_	_
3	can	can	AUX	MD	VerbForm=Fin	4	aux	_	_
4	link	link	VERB	VB	VerbForm=Inf	0	root	_	_
5	into	into	ADP	IN	_	7	case	_	_
6	long	long	ADJ	JJ	Degree=Pos	7	amod	_	_
7	chains	chain	NOUN	NNS	Number=Plur	4	obl	_	_
8	and	and	CCONJ	CC	_	9	cc	_	_
9	rings	ring	NOUN	NNS	Number=Plur	7	conj	_	_
10	,	,	PUNCT	,	_	15	punct	_	_
11	which	which	PRON	WDT	PronType=Rel	12	nsubj	_	_
12	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	parataxis	_	_
13	how	how	ADV	WRB	PronType=Int	14	advmod	_	_
14	huge	huge	ADJ	JJ	Degree=Pos	15	amod	_	_
15	molecules	molecule	NOUN	NNS	Number=Plur	23	nsubj:pass	_	_
16	like	like	ADP	IN	_	17	case	_	_
17	sugar	sugar	NOUN	NN	Number=Sing	15	nmod	_	_
18	,	,	PUNCT	,	_	19	punct	_	_
19	wood	wood	NOUN	NN	Number=Sing	17	conj	_	_
20	and	and	CCONJ	CC	_	21	cc	_	_
21	DNA	DNA	NOUN	NN	Number=Sing	17	conj	_	_
22	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	23	aux:pass	_	_
23	built	build	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	12	ccomp	_	_
24	.	.	PUNCT	.	_	4	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 | **link** | can | Carbon atoms |  |  |  |  | into long chains and rings | vn mix-22.1-2-1 «NP V PP.patient»: agent=Patient into chain=Co-Patient |
| 2 | **build** | present · passive |  | huge molecules like sugar and wood and DNA |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: subject=Product |

<!-- .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:003-molecules-when-atoms-join-up.lesson:19`.

**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: [Molecules: when atoms join up, 18](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/3-molecules-when-atoms-join-up/18/)
- next →: [Molecules: when atoms join up, 20](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/3-molecules-when-atoms-join-up/20/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/3-molecules-when-atoms-join-up/)