---
title: Identify the organs from which a spider extrudes its silk. — Spider-Man: real spider silk and webs · tree and pragmatics
description: Identify the organs from which a spider extrudes its silk. Exam question 1 of lesson 147 «Spider-Man: real spider silk and webs» of the biology 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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# Exam question 1 · Spider-Man: real spider silk and webs

<!-- .ven lang=en -->
Identify the organs from which a spider extrudes its silk.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** you, spider · **What happens:** identify, extrude · **To what, where:** organs, silk

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This is exam question 1 of lesson 147 «Spider-Man: real spider silk and webs» 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/147-spider-man-real-spider-silk-and-webs/#e1).

## The question {#question}

```conllu
# sent_id = question:biology:147-spider-man-real-spider-silk-and-webs:e1:1
# text = Identify the organs from which a spider extrudes its silk.
1	Identify	identify	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	organs	organ	NOUN	NNS	Number=Plur	1	obj	_	_
4	from	from	ADP	IN	_	5	case	_	_
5	which	which	PRON	WDT	PronType=Rel	8	obl	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
7	spider	spider	NOUN	NN	Number=Sing	8	nsubj	_	_
8	extrudes	extrude	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	acl:relcl	_	_
9	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	10	nmod:poss	_	_
10	silk	silk	NOUN	NN	Number=Sing	8	obj	_	SpaceAfter=No
11	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **identify** | imperative | you *not said here* | the organs |  |  |  |  | vn characterize-29.2-1-1 «NP V NP S\_ING»: agent=Agent organ=Theme |
| 2 | **extrude** | present | a spider | spider's silk |  | the organs |  |  | vn remove-10.1 «NP V NP PP»: agent=Agent silk=Theme from which=Initial\_Location |

<!-- .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 -->
The mouthparts, in the manner of the silkworm

```conllu
# sent_id = question:biology:147-spider-man-real-spider-silk-and-webs:e1:o1:1
# text = The mouthparts, in the manner of the silkworm
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	mouthparts	mouthpart	NOUN	NNS	Number=Plur	0	root	_	SpaceAfter=No
3	,	,	PUNCT	,	_	6	punct	_	_
4	in	in	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	manner	manner	NOUN	NN	Number=Sing	2	appos	_	_
7	of	of	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	silkworm	silkworm	NOUN	NN	Number=Sing	6	nmod	_	_
```

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

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

<!-- .ven lang=en -->
The spinnerets situated at the posterior of the abdomen

```conllu
# sent_id = question:biology:147-spider-man-real-spider-silk-and-webs:e1:o2:1
# text = The spinnerets situated at the posterior of the abdomen
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	spinnerets	spinneret	NOUN	NNS	Number=Plur	0	root	_	_
3	situated	situate	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	2	acl	_	_
4	at	at	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	posterior	posterior	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	abdomen	abdomen	NOUN	NN	Number=Sing	6	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **situate** | participle |  | the spinnerets *not said here* |  | the posterior of the abdomen |  |  | vn put-9.1 «NP V NP PP.destination»: agent=Agent at posterior=Destination |

### Option 3 {#o3}

<!-- .ven lang=en -->
Glands situated within the wrists of the forelimbs

```conllu
# sent_id = question:biology:147-spider-man-real-spider-silk-and-webs:e1:o3:1
# text = Glands situated within the wrists of the forelimbs
1	Glands	gland	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	situated	situate	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
3	within	within	ADP	IN	_	5	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	wrists	wrist	NOUN	NNS	Number=Plur	2	obl	_	_
6	of	of	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	forelimbs	forelimb	NOUN	NNS	Number=Plur	5	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **situate** | past | Glands |  |  |  |  | within the wrists of the forelimbs | vn put-9.1 «NP V NP PP.destination»: agent=Agent |

### Option 4 {#o4}

<!-- .ven lang=en -->
The terminal segments of each of the eight legs

```conllu
# sent_id = question:biology:147-spider-man-real-spider-silk-and-webs:e1:o4:1
# text = The terminal segments of each of the eight legs
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	terminal	terminal	ADJ	JJ	Degree=Pos	3	amod	_	_
3	segments	segment	NOUN	NNS	Number=Plur	0	root	_	_
4	of	of	ADP	IN	_	5	case	_	_
5	each	each	DET	DT	PronType=Tot	3	nmod	_	_
6	of	of	ADP	IN	_	9	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
8	eight	eight	NUM	CD	NumForm=Word|NumType=Card	9	nummod	_	_
9	legs	leg	NOUN	NNS	Number=Plur	5	nmod	_	_
```

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

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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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