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17 lines
468 B
17 lines
468 B
different(red, green).
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different(red, blue).
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different(green, red).
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different(green, blue).
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different(blue, red).
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different(blue, green).
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coloring(Alabama, Mississippi, Georgia, Tennessee, Florida) :-
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different(Mississippi, Tennessee),
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different(Mississippi, Alabama),
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different(Alabama, Tennessee),
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different(Alabama, Mississippi),
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different(Alabama, Georgia),
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different(Alabama, Florida),
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different(Georgia, Florida),
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different(Georgia, Tennessee).
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