---
title: Why would a port at the mouth of a big river become very busy? — The great rivers · tree and pragmatics
description: Why would a port at the mouth of a big river become very busy? Test 7 of lesson 16 «The great rivers» of the geography course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/geography/16-the-great-rivers/t7/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [Geography](https://md.mova.elamur.ai/free/en/corpora/questions/geography/) / [The great rivers](https://md.mova.elamur.ai/free/en/corpora/questions/geography/16-the-great-rivers/) / t7

# Test 7 · The great rivers

<!-- .ven lang=en -->
Why would a port at the mouth of a big river become very busy?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** port · **What happens:** become

<!-- .vabout -->
This is test 7 of lesson 16 «The great rivers» of the geography 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/geography/16-the-great-rivers/#t7).

## The question {#question}

```conllu
# sent_id = question:geography:16-the-great-rivers:t7:1
# text = Why would a port at the mouth of a big river become very busy?
1	Why	why	ADV	WRB	PronType=Int	12	advmod	_	_
2	would	would	AUX	MD	VerbForm=Fin	12	aux	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
4	port	port	NOUN	NN	Number=Sing	12	nsubj	_	_
5	at	at	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	mouth	mouth	NOUN	NN	Number=Sing	4	nmod	_	_
8	of	of	ADP	IN	_	11	case	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
10	big	big	ADJ	JJ	Degree=Pos	11	amod	_	_
11	river	river	NOUN	NN	Number=Sing	7	nmod	_	_
12	become	become	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	14	advcl	_	_
13	very	very	ADV	RB	_	14	advmod	_	_
14	busy	busy	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
15	?	?	PUNCT	.	_	14	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **become** | would | a port at the mouth of a big river |  |  |  |  |  | vn become-109.1-1-1 «NP V PP.attribute»: agent=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 · ← Mova's choice · ✓ the right answer {#o1}

<!-- .ven lang=en -->
Goods from the whole river can be moved onto sea ships there

```conllu
# sent_id = question:geography:16-the-great-rivers:t7:o1:1
# text = Goods from the whole river can be moved onto sea ships there
1	Goods	goods	NOUN	NNS	Number=Ptan	8	nsubj:pass	_	_
2	from	from	ADP	IN	_	5	case	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	whole	whole	ADJ	JJ	Degree=Pos	5	amod	_	_
5	river	river	NOUN	NN	Number=Sing	1	nmod	_	_
6	can	can	AUX	MD	VerbForm=Fin	8	aux	_	_
7	be	be	AUX	VB	VerbForm=Inf	8	aux:pass	_	_
8	moved	move	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
9	onto	onto	ADP	IN	_	11	case	_	_
10	sea	sea	NOUN	NN	Number=Sing	11	compound	_	_
11	ships	ship	NOUN	NNS	Number=Plur	8	obl	_	_
12	there	there	ADV	RB	PronType=Dem	8	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **move** | can · passive |  | Goods from the whole river |  | sea ships; there |  |  | vn roll-51.3.1 «NP V NP PP.trajectory»: subject=Theme onto ship=Trajectory |

### Option 2 {#o2}

<!-- .ven lang=en -->
Rivers are saltier at the mouth

```conllu
# sent_id = question:geography:16-the-great-rivers:t7:o2:1
# text = Rivers are saltier at the mouth
1	Rivers	river	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	saltier	salty	ADJ	JJR	Degree=Cmp	0	root	_	_
4	at	at	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	mouth	mouth	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | Rivers |  |  | the mouth |  | salty *property* | tree rules |

### Option 3 {#o3}

<!-- .ven lang=en -->
Fish only live at river mouths, so all the fishing boats gather there

```conllu
# sent_id = question:geography:16-the-great-rivers:t7:o3:1
# text = Fish only live at river mouths, so all the fishing boats gather there
1	Fish	fish	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	only	only	ADV	RB	_	3	advmod	_	_
3	live	live	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	at	at	ADP	IN	_	6	case	_	_
5	river	river	NOUN	NN	Number=Sing	6	compound	_	_
6	mouths	mouth	NOUN	NNS	Number=Plur	3	obl	_	SpaceAfter=No
7	,	,	PUNCT	,	_	13	punct	_	_
8	so	so	ADV	RB	_	13	advmod	_	_
9	all	all	DET	PDT	PronType=Tot	12	det:predet	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
11	fishing	fishing	NOUN	NN	Number=Sing	12	compound	_	_
12	boats	boat	NOUN	NNS	Number=Plur	13	nsubj	_	_
13	gather	gather	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	conj	_	_
14	there	there	ADV	RB	PronType=Dem	13	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **live** | present | Fish |  |  | river mouths |  |  | vn lodge-46 «NP V PP.location»: agent=Theme at mouth=Location |
| 2 | **gather** | present | all fishing boats |  |  | there |  |  | vn herd-47.5.2 «NP V»: agent=Theme |

### Option 4 {#o4}

<!-- .ven lang=en -->
Ships cannot sail on the sea

```conllu
# sent_id = question:geography:16-the-great-rivers:t7:o4:1
# text = Ships cannot sail on the sea
1	Ships	ship	NOUN	NNS	Number=Plur	4	nsubj	_	_
2	can	can	AUX	MD	VerbForm=Fin	4	aux	_	SpaceAfter=No
3	not	not	PART	RB	Polarity=Neg	4	advmod	_	_
4	sail	sail	VERB	VB	VerbForm=Inf	0	root	_	_
5	on	on	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	sea	sea	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **sail** | can | Ships |  |  | the sea |  |  | vn nonvehicle-51.4.2-1 «NP V PP»: agent=Theme |

<!-- 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 -->

<!-- pn -->
- ← previous: [The great rivers, test 6](https://md.mova.elamur.ai/free/en/corpora/questions/geography/16-the-great-rivers/t6/)
- next →: [The great rivers, test 8](https://md.mova.elamur.ai/free/en/corpora/questions/geography/16-the-great-rivers/t8/)
- ↑ back to [The great rivers](https://md.mova.elamur.ai/free/en/corpora/questions/geography/16-the-great-rivers/)