Input TRS:
    1: a__c() -> a__f(g(c()))
    2: a__f(g(X)) -> g(X)
    3: mark(c()) -> a__c()
    4: mark(f(X)) -> a__f(X)
    5: mark(g(X)) -> g(X)
    6: a__c() -> c()
    7: a__f(X) -> f(X)
Number of Rules: 7
Direct QWPOS(Pol) ... orients all.
	I(mark) = 3 * x1 + 3	sigma(mark) = [1]
	I(a__c) = 3
	I(a__f) = 3 * x1 + 2	sigma(a__f) = [1]
	I(c) = 0
	I(f) = 2 * x1 + 1	sigma(f) = [1]
	I(g) = 3 * x1	sigma(g) = [1]
    PREC: mark > a__c > f > a__f = g > c
Number of Rules: 0