MAYBE
(ignored inputs)COMMENT TPDB SRS_Standard/Zantema_04/z110
Rewrite Rules:
   [ a(a(?x)) -> b(?x),
     b(a(?x)) -> a(b(?x)),
     b(b(c(?x))) -> c(a(?x)),
     b(b(?x)) -> a(a(a(?x))),
     c(a(?x)) -> b(a(c(?x))) ]
Apply Direct Methods...
Inner CPs:
   [ b(b(?x)) = a(b(a(?x))),
     b(b(b(a(c(?x_4))))) = c(a(a(?x_4))),
     b(a(b(?x_1))) = a(a(a(a(?x_1)))),
     b(c(a(?x_2))) = a(a(a(b(c(?x_2))))),
     c(b(?x)) = b(a(c(a(?x)))),
     a(b(?x)) = b(a(?x)),
     b(a(a(a(?x)))) = a(a(a(b(?x)))) ]
Outer CPs:
   [ c(a(?x_2)) = a(a(a(c(?x_2)))) ]
Linear
(inner) Parallel CPs: (not computed)
unknown Toyama (Parallel CPs)
Direct Methods: Can't judge

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