“…Step 4: Based on formula (7), one obtains ϒ 1 = {δ 1 16 , δ 4 16 , δ 5 16 , δ 8 16 , δ 13 16 , δ 16 16 }, ϒ 2 = {δ 2 16 , δ 3 16 , δ 6 16 , δ 7 16 , δ 9 16 , δ 10 16 , δ 11 16 , δ 12 16 , δ 14 16 , δ 15 16 }. Thus, a sequence of state subsets is computed: 1 1 = 1 ∩ = {δ 1 16 }, 1 2 = {δ 4 16 , δ 5 16 , δ 8 16 , δ 13 16 , δ 16 16 }, 1 3 = {δ 9 16 , δ 12 16 }, 2 1 = 2 ∩ = {δ 2 16 , δ 15 16 }, 2 2 = {δ 3 16 , δ 6 16 , δ 7 16 , δ 14 16 } and 2 3 = {δ 10 16 , δ 11 16 }.…”