Complete TRS - 991.trs

(VAR
	x
	x'
)
(RULES
	b(c(x)) -> b(a(x))
	b(a(x)) -> c(b(x))
	a(c(x)) -> a(b(x))
	c(b(x)) -> a(a(x))
	b(a(x)) -> b(c(x))
	a(a(x)) -> b(a(x))
	a(a(a(x'))) -> a(b(b(x')))
	a(b(b(x'))) -> b(a(a(x')))
)