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  1. color(red).
  2. color(green).
  3. color(blue).
  4.  
  5. adjacent(ibaraki,tochigi).
  6. adjacent(ibaraki,saitama).
  7. adjacent(ibaraki,chiba).
  8. adjacent(tochigi,gunma).
  9. adjacent(tochigi,saitama).
  10. adjacent(gunma,saitama).
  11. adjacent(saitama,tokyo).
  12. adjacent(saitama,chiba).
  13. adjacent(tokyo,chiba).
  14. adjacent(tokyo,kanagawa).
Success #stdin #stdout 0.01s 5300KB
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solve(Map).
stdout
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GNU Prolog 1.4.5 (64 bits)
Compiled Feb  5 2017, 10:30:08 with gcc
By Daniel Diaz
Copyright (C) 1999-2016 Daniel Diaz
| ?- 
uncaught exception: error(existence_error(procedure,solve/1),top_level/0)
| ?-
https://ideone.com/sy3vOV
language:
Prolog (gprolog 1.4.5)
created:
6 days ago
visibility:
public

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