1[n] -> { s0[i] -> [i] : exists alpha: 1 <= i <= n and i = 4 alpha;2 s1[i] -> [i] : exists alpha: 1 <= i <= n and i = 4 alpha + 2 }3[n] -> { : }4[n] -> { [*] -> separate[x] : x >= 0 }5
