Subsequence Search
R = A or GS = A or TU = A or CY = T or C
Z = T or GO = S or SSV = G or C
H = A or T or CI = A or T or GJ = A or C or GK = T or C or G
W = A,T,G or CL = if L is C next L is G or if L is G next L is C.P = if P is A, next P is T or if P is T next P is A
BD => if B is A next D is T or if B is G next D is C