Input TRS:
    1: .(1(),x) -> x
    2: .(x,1()) -> x
    3: .(i(x),x) -> 1()
    4: .(x,i(x)) -> 1()
    5: i(1()) -> 1()
    6: i(i(x)) -> x
    7: .(i(y),.(y,z)) -> z
    8: .(y,.(i(y),z)) -> z
Number of Rules: 8
Direct QLPOS ... orients all.
	sigma(.) = [2,1]
	sigma(i) = [1]
    PREC: 1 = i > .
Number of Rules: 0