fib 0 0 fib s 0 s 0 fib s s 0 s 0 fib s s x sp g x g 0 pair s 0 0 g s 0 pair s 0 s 0 g s x np g x sp pair x y + x y np pair x y pair + x y x + x 0 x + x s y s + x y fib 1 0 0 s 1 sp 1 g 1 pair 2 np 1 + 2 FULL ./TRS/SK90/2.27.trs