ALPHA, BETA, gamma, delta. The next letters on the list, if it comes to it, which it probably will, are epsilon, zeta, eta and theta. (B.1.1.7s new name is Alpha.) They will now be given the letters Alpha, Beta, Gamma, and Delta respectively, to reflect their order of detection, with any new variants following the pattern down the Greek alphabet. Currently, there are no plans on how to label the variants after the 24 letters of the Greek alphabet are used up.
ALPHA, BETA,gamma, etching and the next letters on the list are Sigma, Howe, Rain and Cannon.
( z0 and :op ( z1 disc :name ( z2 name :op "Al" ) ) :op ( z3 letter :name ( z4 name :op "Gamma" ) :mod ( z5 et ) ) :op ( z6 letter :name ( z7 name :op "Sigma" ) :mod ( z8 next ) ) :op ( z9 string-entity :name ( z10 name :op "Rain" ) ) :op ( z11 person :name ( z12 name :op "Cannon" ) ) :rel ( z13 publication :name ( z14 name :op "BETA" ) ) :rel ( z15 letter :ARG1-of ( z16 list ) :mod z0 :op ( z17 person :name ( z18 name :op "Howe" ) ) ) )
(z0 / and
    :op1 (z1 / disc
             :name (z2 / name
                       :op1 "Al"))
    :op2 (z3 / letter
             :name (z4 / name
                       :op1 "Gamma")
             :mod (z5 / et))
    :op3 (z6 / letter
             :name (z7 / name
                       :op1 "Sigma")
             :mod (z8 / next))
    :op5 (z9 / string-entity
             :name (z10 / name
                        :op1 "Rain"))
    :op6 (z11 / person
              :name (z12 / name
                         :op1 "Cannon"))
    :rel (z13 / publication
              :name (z14 / name
                         :op1 "BETA"))
    :rel (z15 / letter
              :ARG1-of (z16 / list-01)
              :mod z0
              :op4 (z17 / person
                        :name (z18 / name
                                   :op1 "Howe"))))
ALPHA , BETA , gamma , etching and the next letters on the list are Sigma , Howe , Rain and Cannon .
z1 :name z2
z2 :op1 0
z13 :name z14
z14 :op1 1
z4 :op1 3
z0 :op1 z1
z15 :mod z0
z0 :op2 z3
z3 :mod z5
z3 :name z4
z6 :mod z8
z0 :op3 z6
z15 :ARG1-of z16
z7 :op1 6
z6 :name z7
z18 :op1 4
z17 :name z18
z15 :op4 z17
z0 :op5 z9
z10 :op1 5
z9 :name z10
z0 :op6 z11
z11 :name z12
z12 :op1 2
z0 :rel z13
z0 :rel z15