A) K = {x | x, ANKARA kelimesinin harfleri}

B) L = {x | x < 4, x ∈ N}

C) M = {1, 2, {3, 4}, {5, 6, 7}}

D) N = {x | 2 < x < 7, x ∈ Z}

E) T = {x | 2x < 10, x ∈ Z}