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Digits from words

Convert a number in words to digits.

## Input
- A number in words from `one` to `ninety-nine`.

## Output
- The corresponding number in digits from 1 to 99.
- This may be a string of digits or a number of that value (such as a float or an integer).

## Test cases
Test cases are in the format `input : output`.

```txt
one : 1
two : 2
three : 3
four : 4
five : 5
six : 6
seven : 7
eight : 8
nine : 9
ten : 10
eleven : 11
twelve : 12
thirteen : 13
fourteen : 14
fifteen : 15
sixteen : 16
seventeen : 17
eighteen : 18
nineteen : 19
twenty : 20
twenty-one : 21
twenty-two : 22
twenty-three : 23
twenty-four : 24
twenty-five : 25
twenty-six : 26
twenty-seven : 27
twenty-eight : 28
twenty-nine : 29
thirty : 30
thirty-one : 31
thirty-two : 32
thirty-three : 33
thirty-four : 34
thirty-five : 35
thirty-six : 36
thirty-seven : 37
thirty-eight : 38
thirty-nine : 39
forty : 40
forty-one : 41
forty-two : 42
forty-three : 43
forty-four : 44
forty-five : 45
forty-six : 46
forty-seven : 47
forty-eight : 48
forty-nine : 49
fifty : 50
fifty-one : 51
fifty-two : 52
fifty-three : 53
fifty-four : 54
fifty-five : 55
fifty-six : 56
fifty-seven : 57
fifty-eight : 58
fifty-nine : 59
sixty : 60
sixty-one : 61
sixty-two : 62
sixty-three : 63
sixty-four : 64
sixty-five : 65
sixty-six : 66
sixty-seven : 67
sixty-eight : 68
sixty-nine : 69
seventy : 70
seventy-one : 71
seventy-two : 72
seventy-three : 73
seventy-four : 74
seventy-five : 75
seventy-six : 76
seventy-seven : 77
seventy-eight : 78
seventy-nine : 79
eighty : 80
eighty-one : 81
eighty-two : 82
eighty-three : 83
eighty-four : 84
eighty-five : 85
eighty-six : 86
eighty-seven : 87
eighty-eight : 88
eighty-nine : 89
ninety : 90
ninety-one : 91
ninety-two : 92
ninety-three : 93
ninety-four : 94
ninety-five : 95
ninety-six : 96
ninety-seven : 97
ninety-eight : 98
ninety-nine : 99
```

## Scoring
This is a [code golf challenge]. Your score is the number of bytes in your code. Lowest score for each language wins.

> Explanations are optional, but I'm more likely to upvote answers that have one.


[code golf challenge]: https://codegolf.codidact.com/categories/49/tags/4274 "The code-golf tag"