YES
(ignored inputs)COMMENT generated by FORT "UN & ~NFP" submitted by: Franziska Rapp
input TRS:
   [ a -> a,
     f(b,a) -> f(a,b),
     f(?x,a) -> b ]
TRS:
   [ a -> a,
     f(b,a) -> f(a,b),
     f(?x,a) -> b ]
confluent TRS:
   [ a -> a,
     f(b,a) -> f(a,b),
     f(?x,a) -> b,
     f(a,b) -> b ]
UNC Completion (Strongly Closed)
problems/738.trs: Success(UNC)
(4 msec.)