---
title: Why are some old stone statues losing their faces? — Acids in the kitchen · tree and pragmatics
description: Why are some old stone statues losing their faces? Test 6 of lesson 15 «Acids in the kitchen» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Test 6 · Acids in the kitchen

<!-- .ven lang=en -->
Why are some old stone statues losing their faces?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** old stone statues · **What happens:** lose · **To what, where:** faces

<!-- .vabout -->
This is test 6 of lesson 15 «Acids in the kitchen» of the chemistry course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/chemistry/15-acids-in-the-kitchen/#t6).

## The question {#question}

```conllu
# sent_id = question:chemistry:15-acids-in-the-kitchen:t6:1
# text = Why are some old stone statues losing their faces?
1	Why	why	ADV	WRB	PronType=Int	7	advmod	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	aux	_	_
3	some	some	DET	DT	PronType=Ind	6	det	_	_
4	old	old	ADJ	JJ	Degree=Pos	6	amod	_	_
5	stone	stone	NOUN	NN	Number=Sing	6	compound	_	_
6	statues	statue	NOUN	NNS	Number=Plur	7	nsubj	_	_
7	losing	lose	VERB	VBG	Tense=Pres|VerbForm=Part	0	root	_	_
8	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	9	nmod:poss	_	_
9	faces	face	NOUN	NNS	Number=Plur	7	obj	_	SpaceAfter=No
10	?	?	PUNCT	.	_	7	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **lose** | present · progressive | some old stone statues | statues's faces |  |  |  |  | vn succeed-74-3-1 «NP V NP»: agent=Agent face=Eventuality |

<!-- .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.

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Birds pecked their faces off

```conllu
# sent_id = question:chemistry:15-acids-in-the-kitchen:t6:o1:1
# text = Birds pecked their faces off
1	Birds	bird	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	pecked	peck	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
3	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	4	nmod:poss	_	_
4	faces	face	NOUN	NNS	Number=Plur	2	obj	_	_
5	off	off	ADV	RB	_	2	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **peck off** | past | Birds | Birds's faces |  |  |  | off *property* | vn chew-39.2 «NP V NP»: agent=Agent face=Patient |

### Option 2 · ✓ the right answer {#o2}

<!-- .ven lang=en -->
Acid rain slowly ate away the stone

```conllu
# sent_id = question:chemistry:15-acids-in-the-kitchen:t6:o2:1
# text = Acid rain slowly ate away the stone
1	Acid	acid	NOUN	NN	Number=Sing	2	compound	_	_
2	rain	rain	NOUN	NN	Number=Sing	4	nsubj	_	_
3	slowly	slowly	ADV	RB	_	4	advmod	_	_
4	ate	eat	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
5	away	away	ADV	RB	_	4	advmod	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	stone	stone	NOUN	NN	Number=Sing	4	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **eat away** | past | Acid rain | the stone |  |  |  | away, slowly *property* | vn eat-39.1-1 «NP V NP»: agent=Agent stone=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
People kept rubbing them for luck

```conllu
# sent_id = question:chemistry:15-acids-in-the-kitchen:t6:o3:1
# text = People kept rubbing them for luck
1	People	people	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	kept	keep	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
3	rubbing	rub	VERB	VBG	VerbForm=Ger	2	xcomp	_	_
4	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	3	obj	_	_
5	for	for	ADP	IN	_	6	case	_	_
6	luck	luck	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | past | People |  |  |  |  |  | tree rules |
| 2 | **rub** | gerund | People *not said here* | People |  |  |  | for luck | vn spray-9.7-1 «NP V NP.theme»: agent=Agent they=Theme |

### Option 4 {#o4}

<!-- .ven lang=en -->
The stone slowly melted away in the hot summers

```conllu
# sent_id = question:chemistry:15-acids-in-the-kitchen:t6:o4:1
# text = The stone slowly melted away in the hot summers
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	stone	stone	NOUN	NN	Number=Sing	4	nsubj:pass	_	_
3	slowly	slowly	ADV	RB	_	4	advmod	_	_
4	melted	melt	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	away	away	ADV	RB	_	4	advmod	_	_
6	in	in	ADP	IN	_	9	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
8	hot	hot	ADJ	JJ	Degree=Pos	9	amod	_	_
9	summers	summer	NOUN	NNS	Number=Plur	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **melt away** | participle · passive |  | the stone |  |  | summer | away, slowly *property* | vn other\_cos-45.4-1 «NP V NP ADJ»: subject=Result |

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**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License.

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