MAYBE
(ignored inputs)COMMENT TPDB SRS_Standard/Zantema_04/z084
Rewrite Rules:
   [ b(c(?x)) -> a(?x),
     b(b(?x)) -> a(c(?x)),
     a(?x) -> c(b(?x)),
     c(c(c(?x))) -> b(?x) ]
Apply Direct Methods...
Inner CPs:
   [ b(b(?x_3)) = a(c(c(?x_3))),
     b(a(?x)) = a(c(c(?x))),
     b(a(c(?x))) = a(c(b(?x))),
     c(b(?x)) = b(c(?x)),
     c(c(b(?x))) = b(c(c(?x))) ]
Outer CPs:
   [  ]
Linear
(inner) Parallel CPs: (not computed)
unknown Toyama (Parallel CPs)
Direct Methods: Can't judge

Combined result: Can't judge
985.trs: Failure(unknown CR)
(0 msec.)