---
title: Ascertain the principal characteristic of the harvestman which disti… — Spiders, scorpions and other eight-leg… · tree and pragmatics
description: Ascertain the principal characteristic of the harvestman which distinguishes it from true spiders. Exam question 3 of lesson 38 «Spiders, scorpions and other eight-legged creatures» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each op
---

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# Exam question 3 · Spiders, scorpions and other eight-legged creatures

<!-- .ven lang=en -->
Ascertain the principal characteristic of the harvestman which distinguishes it from true spiders.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** you, harvestman · **What happens:** ascertain, distinguish · **To what, where:** principal characteristic, characteristic

<!-- .vabout -->
This is exam question 3 of lesson 38 «Spiders, scorpions and other eight-legged creatures» 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/38-spiders-scorpions-and-eight-legged-creatures/#e3).

## The question {#question}

```conllu
# sent_id = question:biology:38-spiders-scorpions-and-eight-legged-creatures:e3:1
# text = Ascertain the principal characteristic of the harvestman which distinguishes it from true spiders.
1	Ascertain	ascertain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	principal	principal	ADJ	JJ	Degree=Pos	4	amod	_	_
4	characteristic	characteristic	NOUN	NN	Number=Sing	1	obj	_	_
5	of	of	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	harvestman	harvestman	NOUN	NN	Number=Sing	4	nmod	_	_
8	which	which	PRON	WDT	PronType=Rel	9	nsubj	_	_
9	distinguishes	distinguish	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	acl:relcl	_	_
10	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	9	obj	_	_
11	from	from	ADP	IN	_	13	case	_	_
12	true	true	ADJ	JJ	Degree=Pos	13	amod	_	_
13	spiders	spider	NOUN	NNS	Number=Plur	9	obl	_	SpaceAfter=No
14	.	.	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 principal characteristic of the harvestman |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent characteristic=Topic |
| 2 | **distinguish** | present | the harvestman | characteristic |  |  |  | from true spiders | vn distinguish-23.5-1 «NP V NP.theme PP.co-theme»: agent=Agent it=Theme from spider=Co-Theme |

<!-- .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 · ✓ the right answer {#o1}

<!-- .ven lang=en -->
A single rounded body, two eyes, and no silk or venom

```conllu
# sent_id = question:biology:38-spiders-scorpions-and-eight-legged-creatures:e3:o1:1
# text = A single rounded body, two eyes, and no silk or venom
1	A	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
2	single	single	ADJ	JJ	Degree=Pos	4	amod	_	_
3	rounded	round	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	amod	_	_
4	body	body	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
5	,	,	PUNCT	,	_	7	punct	_	_
6	two	two	NUM	CD	NumForm=Word|NumType=Card	7	nummod	_	_
7	eyes	eye	NOUN	NNS	Number=Plur	4	conj	_	SpaceAfter=No
8	,	,	PUNCT	,	_	11	punct	_	_
9	and	and	CCONJ	CC	_	11	cc	_	_
10	no	no	DET	DT	PronType=Neg	11	det	_	_
11	silk	silk	NOUN	NN	Number=Sing	4	conj	_	_
12	or	or	CCONJ	CC	_	13	cc	_	_
13	venom	venom	NOUN	NN	Number=Sing	11	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **round** | participle |  |  |  |  |  |  | vn bend-45.2 «NP.patient V»: agent=Patient |

### Option 2 {#o2}

<!-- .ven lang=en -->
Six legs and a pair of wings

```conllu
# sent_id = question:biology:38-spiders-scorpions-and-eight-legged-creatures:e3:o2:1
# text = Six legs and a pair of wings
1	Six	six	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	legs	leg	NOUN	NNS	Number=Plur	0	root	_	_
3	and	and	CCONJ	CC	_	5	cc	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	pair	pair	NOUN	NN	Number=Sing	2	conj	_	_
6	of	of	ADP	IN	_	7	case	_	_
7	wings	wing	NOUN	NNS	Number=Plur	5	nmod	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 3 {#o3}

<!-- .ven lang=en -->
Eight eyes and a highly potent venom

```conllu
# sent_id = question:biology:38-spiders-scorpions-and-eight-legged-creatures:e3:o3:1
# text = Eight eyes and a highly potent venom
1	Eight	eight	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	eyes	eye	NOUN	NNS	Number=Plur	0	root	_	_
3	and	and	CCONJ	CC	_	7	cc	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
5	highly	highly	ADV	RB	_	6	advmod	_	_
6	potent	potent	ADJ	JJ	Degree=Pos	7	amod	_	_
7	venom	venom	NOUN	NN	Number=Sing	2	conj	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 4 {#o4}

<!-- .ven lang=en -->
The construction of orb webs

```conllu
# sent_id = question:biology:38-spiders-scorpions-and-eight-legged-creatures:e3:o4:1
# text = The construction of orb webs
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	construction	construction	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	5	case	_	_
4	orb	orb	NOUN	NN	Number=Sing	5	compound	_	_
5	webs	web	NOUN	NNS	Number=Plur	2	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **construct** |  |  | orb webs |  |  |  |  | nom construction «act transitive»: of=patient |

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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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