---
title: Change CAT into DOG, one letter at a time. Which ladder is legal? — Olympiad: word puzzles — anagrams, pal… · tree and pragmatics
description: Change CAT into DOG, one letter at a time. Which ladder is legal? Test 3 · ★★★ of lesson 56 «Olympiad: word puzzles — anagrams, palindromes, word ladders» of the English course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was rig
---

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# Test 3 · ★★★ · Olympiad: word puzzles — anagrams, palindromes, word ladders

<!-- .ven lang=en -->
Change CAT into DOG, one letter at a time. Which ladder is legal?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** you, ladder · **What happens:** change, be · **To what, where:** CAT

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This is test 3 · ★★★ of lesson 56 «Olympiad: word puzzles — anagrams, palindromes, word ladders» of the English 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/english/56-olympiad-word-puzzles-anagrams-palindromes-word-ladders/#t3).

## The question {#question}

<!-- .note -->
*Sentence 1:* Change CAT into DOG, one letter at a time.

```conllu
# sent_id = question:english:56-olympiad-word-puzzles-anagrams-palindromes-word-ladders:t3:1
# text = Change CAT into DOG, one letter at a time.
1	Change	change	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	CAT	cat	NOUN	NN	Number=Sing	1	obj	_	_
3	into	into	ADP	IN	_	4	case	_	_
4	DOG	dog	NOUN	NN	Number=Sing	1	obl	_	SpaceAfter=No
5	,	,	PUNCT	,	_	7	punct	_	_
6	one	one	NUM	CD	NumForm=Word|NumType=Card	7	nummod	_	_
7	letter	letter	NOUN	NN	Number=Sing	4	conj	_	_
8	at	at	ADP	IN	_	10	case	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
10	time	time	NOUN	NN	Number=Sing	1	obl	_	SpaceAfter=No
11	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **change** | imperative | you *not said here* | CAT |  |  | time | into DOG and one letter *result* | vn turn-26.6.1-1 «NP V NP.patient PP.result»: agent=Agent cat=Patient into dog=Result |

<!-- .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.

<!-- .note -->
*Sentence 2:* Which ladder is legal?

```conllu
# sent_id = question:english:56-olympiad-word-puzzles-anagrams-palindromes-word-ladders:t3:2
# text = Which ladder is legal?
1	Which	which	DET	WDT	PronType=Int	2	det	_	_
2	ladder	ladder	NOUN	NN	Number=Sing	4	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
4	legal	legal	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
5	?	?	PUNCT	.	_	4	punct	_	_
```

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

## The options {#options}

### Option 1 · ← Mova's choice · ✓ the right answer {#o1}

<!-- .ven lang=en -->
CAT, COT, COG, DOG

```conllu
# sent_id = question:english:56-olympiad-word-puzzles-anagrams-palindromes-word-ladders:t3:o1:1
# text = CAT, COT, COG, DOG
1	CAT	cat	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
2	,	,	PUNCT	,	_	3	punct	_	_
3	COT	cot	NOUN	NN	Number=Sing	1	conj	_	SpaceAfter=No
4	,	,	PUNCT	,	_	5	punct	_	_
5	COG	cog	NOUN	NN	Number=Sing	1	conj	_	SpaceAfter=No
6	,	,	PUNCT	,	_	7	punct	_	_
7	DOG	dog	NOUN	NN	Number=Sing	1	conj	_	_
```

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

### Option 2 {#o2}

<!-- .ven lang=en -->
CAT, BAT, BOG, DOG

```conllu
# sent_id = question:english:56-olympiad-word-puzzles-anagrams-palindromes-word-ladders:t3:o2:1
# text = CAT, BAT, BOG, DOG
1	CAT	cat	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
2	,	,	PUNCT	,	_	3	punct	_	_
3	BAT	bat	NOUN	NN	Number=Sing	1	appos	_	SpaceAfter=No
4	,	,	PUNCT	,	_	5	punct	_	_
5	BOG	bog	NOUN	NN	Number=Sing	1	conj	_	SpaceAfter=No
6	,	,	PUNCT	,	_	7	punct	_	_
7	DOG	dog	NOUN	NN	Number=Sing	1	conj	_	_
```

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

### Option 3 {#o3}

<!-- .ven lang=en -->
CAT, DOT, DOG

```conllu
# sent_id = question:english:56-olympiad-word-puzzles-anagrams-palindromes-word-ladders:t3:o3:1
# text = CAT, DOT, DOG
1	CAT	cat	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
2	,	,	PUNCT	,	_	3	punct	_	_
3	DOT	dot	NOUN	NN	Number=Sing	1	conj	_	SpaceAfter=No
4	,	,	PUNCT	,	_	5	punct	_	_
5	DOG	dog	NOUN	NN	Number=Sing	1	conj	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
CAT, CAG, DOG

```conllu
# sent_id = question:english:56-olympiad-word-puzzles-anagrams-palindromes-word-ladders:t3:o4:1
# text = CAT, CAG, DOG
1	CAT	cat	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
2	,	,	PUNCT	,	_	3	punct	_	_
3	CAG	cag	NOUN	NN	Number=Sing	1	conj	_	SpaceAfter=No
4	,	,	PUNCT	,	_	5	punct	_	_
5	DOG	dog	NOUN	NN	Number=Sing	1	conj	_	_
```

<!-- .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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