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  1. color(red).
  2. color(blue).
  3.  
  4. adjacent(ibaraki, tochigi).
  5. adjacent(ibaraki, saitama).
  6. adjacent(ibaraki, chiba).
  7. adjacent(tochigi, gunma).
  8. adjacent(tochigi, saitama).
  9. adjacent(gunma, saitama).
  10. adjacent(saitama, chiba).
  11. adjacent(saitama, tokyo).
  12. adjacent(chiba, tokyo).
  13. adjacent(tokyo, kanagawa).
Success #stdin #stdout 0.01s 5320KB
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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
| ?-
https://ideone.com/FIFMwu
language:
Prolog (gprolog 1.4.5)
created:
6 days ago
visibility:
public

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