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 Pack number_to_word -- prolog/number_to_word.pl

Small utility pack for converting integers to English words.

author
- Ebrahim Azarisooreh
 Num - is a flat list of integer digits that correspond to the number in each place of the entire number. A whole number must be represented with a length that's a multiple of 3. For example, `[0,0,3]` is correct, but `[3]` is not. Word - is a list of English words correspond to an integer. Every number that represents a magnitude that increases by the order of 10^3, is encased in its own list. In example, ```?- number_word([5,5,2,0,1,2,0,0,6], Word). Word = [[five, hundred, fifty, two], million, [twelve], thousand, six] ?- number_word([0,0,6], Word). Word = [six] ?- number_word(Number, [[one], thousand, three, hundred, seventy, two]). Number = [0, 0, 1, 3, 7, 2] ?- number_word(Number, [[one], thousand, X, hundred, seventy, two]). Number = [0, 0, 1, 1, 7, 2], X = one ; Number = [0, 0, 1, 2, 7, 2], X = two ; Number = [0, 0, 1, 3, 7, 2], X = three ; ... etc.```