---
title: Ascertain the cause of the yellow reflection produced when a butterc… — Weeds and wildflowers: dandelions, net… · tree and pragmatics
description: Ascertain the cause of the yellow reflection produced when a buttercup is held beneath the chin. Exam question 4 of lesson 340 «Weeds and wildflowers: dandelions, nettles, daisies, clover and plantain» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the que
---

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# Exam question 4 · Weeds and wildflowers: dandelions, nettles, daisies, clove…

<!-- .ven lang=en -->
Ascertain the cause of the yellow reflection produced when a buttercup is held beneath the chin.

<!-- .vintro -->
**Mova's choice:** option 4 · **The right answer:** option 4 · right ✓ · **Who acts:** you · **What happens:** ascertain, produce, hold, cause · **To what, where:** cause, yellow reflection, buttercup, chin

<!-- .vabout -->
This is exam question 4 of lesson 340 «Weeds and wildflowers: dandelions, nettles, daisies, clover and plantain» of the biology course of Mova's primary school, asked in stiff, formal language. 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/biology/340-weeds-and-wildflowers-dandelions-nettles-daisies-clover-and-plantain/#e4).

## The question {#question}

```conllu
# sent_id = question:biology:340-weeds-and-wildflowers-dandelions-nettles-daisies-clover-and-plantain:e4:1
# text = Ascertain the cause of the yellow reflection produced when a buttercup is held beneath the chin.
1	Ascertain	ascertain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	cause	cause	NOUN	NN	Number=Sing	1	obj	_	_
4	of	of	ADP	IN	_	7	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	yellow	yellow	ADJ	JJ	Degree=Pos	7	amod	_	_
7	reflection	reflection	NOUN	NN	Number=Sing	3	nmod	_	_
8	produced	produce	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	7	acl	_	_
9	when	when	SCONJ	WRB	_	13	mark	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
11	buttercup	buttercup	NOUN	NN	Number=Sing	13	nsubj:pass	_	_
12	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	13	aux:pass	_	_
13	held	hold	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	8	advcl	_	_
14	beneath	beneath	ADP	IN	_	16	case	_	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
16	chin	chin	NOUN	NN	Number=Sing	13	obl	_	SpaceAfter=No
17	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ascertain** | imperative | you *not said here* | the cause of the yellow reflection |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent cause=Topic |
| 2 | **produce** | participle |  | the yellow reflection *not said here* |  |  |  |  | vn create-26.4 «NP V NP»: agent=Agent |
| 3 | **hold** | present · passive |  | a buttercup |  | the chin |  |  | vn keep-15.2 «NP V NP PP.location»: subject=Theme beneath chin=Location |
| 4 | **cause** |  |  | the yellow reflection |  |  |  |  | nom cause «event transitive»: of=patient |

<!-- .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 {#o1}

<!-- .ven lang=en -->
The skin of the subject emits a yellow light in sunshine

```conllu
# sent_id = question:biology:340-weeds-and-wildflowers-dandelions-nettles-daisies-clover-and-plantain:e4:o1:1
# text = The skin of the subject emits a yellow light in sunshine
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	skin	skin	NOUN	NN	Number=Sing	6	nsubj	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	subject	subject	NOUN	NN	Number=Sing	2	nmod	_	_
6	emits	emit	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
8	yellow	yellow	ADJ	JJ	Degree=Pos	9	amod	_	_
9	light	light	NOUN	NN	Number=Sing	6	obj	_	_
10	in	in	ADP	IN	_	11	case	_	_
11	sunshine	sunshine	NOUN	NN	Number=Sing	6	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **emit** | present | the skin of the subject | a yellow light |  | sunshine |  |  | vn substance\_emission-43.4 «NP V NP»: agent=Source light=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
The subject's fondness for butter is thereby demonstrated

```conllu
# sent_id = question:biology:340-weeds-and-wildflowers-dandelions-nettles-daisies-clover-and-plantain:e4:o2:1
# text = The subject's fondness for butter is thereby demonstrated
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	subject	subject	NOUN	NN	Number=Sing	4	nmod:poss	_	SpaceAfter=No
3	's	's	PART	POS	_	2	case	_	_
4	fondness	fondness	NOUN	NN	Number=Sing	9	nsubj:pass	_	_
5	for	for	ADP	IN	_	6	case	_	_
6	butter	butter	NOUN	NN	Number=Sing	4	nmod	_	_
7	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	aux:pass	_	_
8	thereby	thereby	ADV	RB	_	9	advmod	_	_
9	demonstrated	demonstrate	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **demonstrate** | present · passive |  | the subject's fondness for butter |  |  |  | thereby *property* | vn indicate-78-1-1 «NP V NP»: subject=Topic |

### Option 3 {#o3}

<!-- .ven lang=en -->
Pollen is deposited upon the skin of the subject

```conllu
# sent_id = question:biology:340-weeds-and-wildflowers-dandelions-nettles-daisies-clover-and-plantain:e4:o3:1
# text = Pollen is deposited upon the skin of the subject
1	Pollen	pollen	NOUN	NN	Number=Sing	3	nsubj:pass	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	aux:pass	_	_
3	deposited	deposit	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	upon	upon	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	skin	skin	NOUN	NN	Number=Sing	3	obl	_	_
7	of	of	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	subject	subject	NOUN	NN	Number=Sing	6	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **deposit** | present · passive |  | Pollen |  | the skin of the subject |  |  | vn put-9.1-1 «NP V NP PP.destination»: subject=Theme upon skin=Destination |

### Option 4 · ← Mova's choice · ✓ the right answer {#o4}

<!-- .ven lang=en -->
A glossy layer within the petals reflects light, irrespective of any preference of the subject

<!-- fold The tree, 15 words -->
```conllu
# sent_id = question:biology:340-weeds-and-wildflowers-dandelions-nettles-daisies-clover-and-plantain:e4:o4:1
# text = A glossy layer within the petals reflects light, irrespective of any preference of the subject
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	glossy	glossy	ADJ	JJ	Degree=Pos	3	amod	_	_
3	layer	layer	NOUN	NN	Number=Sing	7	nsubj	_	_
4	within	within	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	petals	petal	NOUN	NNS	Number=Plur	3	nmod	_	_
7	reflects	reflect	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
8	light	light	NOUN	NN	Number=Sing	7	obj	_	SpaceAfter=No
9	,	,	PUNCT	,	_	13	punct	_	_
10	irrespective	irrespective	ADV	RB	_	13	advmod	_	_
11	of	of	ADP	IN	_	13	case	_	_
12	any	any	DET	DT	PronType=Ind	13	det	_	_
13	preference	preference	NOUN	NN	Number=Sing	7	obl	_	_
14	of	of	ADP	IN	_	16	case	_	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
16	subject	subject	NOUN	NN	Number=Sing	13	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **reflect** | present | a glossy layer within the petals | light |  |  |  | of any preference of the subject | tree rules |
| 2 | **prefer** |  |  | the subject |  |  |  |  | nom preference «feeling transitive»: of=patient |

<!-- div src -->

**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.

<!-- /div -->

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- ← previous: [Weeds and wildflowers: dandelions, net…, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/340-weeds-and-wildflowers-dandelions-nettles-daisies-clover-and-plantain/e3/)
- next →: [Where milk comes from: cow to carton,…, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/biology/341-where-milk-comes-from-cow-to-carton-cheese-butter-and-yoghurt/t1/)
- ↑ back to [Weeds and wildflowers: dandelions, nettles, daisies, clover and plantain](https://md.mova.elamur.ai/free/en/corpora/questions/biology/340-weeds-and-wildflowers-dandelions-nettles-daisies-clover-and-plantain/)