---
title: Gold, silver and platinum are precious metals: rare, beautiful, and… — Metals and what they're good for · tree and pragmatics
description: Gold, silver and platinum are precious metals: rare, beautiful, and hardly reacting with air, although silver slowly tarnishes. Who acts: Gold, silver. A sentence of the lesson «Metals and what they're good for» of the chemistry course of Mova's primary school with its dependency tree and the pragma
---

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# Metals and what they're good for, sentence 11

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Gold, silver and platinum are precious metals: rare, beautiful, and hardly reacting with air, although silver slowly tarnishes.

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**Who acts:** Gold, silver · **What happens:** be, react, tarnish · **To what, where:** precious metals

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This is a sentence of the lesson «Metals and what they're good for» 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 (Gold, silver), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:chemistry:031-metals-what-theyre-good-for.lesson:11
# text = Gold, silver and platinum are precious metals: rare, beautiful, and hardly reacting with air, although silver slowly tarnishes.
# source = school lesson (ours)
# course = chemistry
# lesson = 031-metals-what-theyre-good-for.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): R1-cc-next ×1, R6-punct-agree ×2
1	Gold	gold	NOUN	NN	Number=Sing	8	nsubj	_	_
2	,	,	PUNCT	,	_	3	punct	_	Agree=R6-punct-agree|Haiku=8:punct
3	silver	silver	NOUN	NN	Number=Sing	1	conj	_	_
4	and	and	CCONJ	CC	_	5	cc	_	Agree=R1-cc-next|Haiku=1:cc
5	platinum	platinum	NOUN	NN	Number=Sing	1	conj	_	_
6	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
7	precious	precious	ADJ	JJ	Degree=Pos	8	amod	_	_
8	metals	metal	NOUN	NNS	Number=Plur	0	root	_	_
9	:	:	PUNCT	:	_	12	punct	_	_
10	rare	rare	ADJ	JJ	Degree=Pos	12	conj	_	_
11	,	,	PUNCT	,	_	12	punct	_	Agree=R6-punct-agree|Haiku=10:punct
12	beautiful	beautiful	ADJ	JJ	Degree=Pos	8	conj	_	_
13	,	,	PUNCT	,	_	16	punct	_	_
14	and	and	CCONJ	CC	_	16	cc	_	_
15	hardly	hardly	ADV	RB	_	16	advmod	_	_
16	reacting	react	VERB	VBG	Tense=Pres|VerbForm=Part	12	advcl	_	_
17	with	with	ADP	IN	_	18	case	_	_
18	air	air	NOUN	NN	Number=Sing	16	obl	_	_
19	,	,	PUNCT	,	_	23	punct	_	_
20	although	although	SCONJ	IN	_	23	mark	_	_
21	silver	silver	NOUN	NN	Number=Sing	23	nsubj	_	_
22	slowly	slowly	ADV	RB	_	23	advmod	_	_
23	tarnishes	tarnish	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	16	advcl	_	_
24	.	.	PUNCT	.	_	8	punct	_	_
```

## Pragmatics {#pragmatics}

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No stored speech act for this sentence.

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | Gold and silver and platinum | precious metals |  |  |  |  | tree rules |
| 2 | **be** |  | Gold and silver and platinum *not said here* |  |  |  |  |  | tree rules |
| 3 | **react** | gerund | Gold and silver and platinum *not said here* |  |  |  |  | with air; hardly *property* | vn respond-113 «NP V PP.predicate»: agent=Agent with air=Eventuality |
| 4 | **tarnish** | present | silver |  |  |  |  | slowly *property* | vn entity\_specific\_cos-45.5 «NP.patient V»: agent=Patient |

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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:chemistry:031-metals-what-theyre-good-for.lesson:11`.

**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): R1-cc-next ×1, R6-punct-agree ×2. **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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