The next letters on the list, if it comes to it, which it probably will, are epsilon, zeta, eta and theta. ALPHA, BETA, gamma, delta. (B.1.1.7s new name is Alpha.) Epsilon refers to the B.1.427 and B.1.429 variants first found in the U.S., Zeta refers to the P.2 variant first discovered in Brazil and Eta refers to the B.1.525 variant initially detected in multiple countries. Greek letters are often used as parts of scientific labels, which adds authority to the idea.
he letter refers to the black eyed devil which is found in Brazil and sorts ofraina.
( z0 refer :ARG0 ( z1 letter :mod ( z2 he ) ) :ARG1 ( z3 devil :ARG1-of ( z4 find :location ( z5 and :op ( z6 country :name ( z7 name :op "Brazil" ) ) :op ( z8 forest :mod ( z9 sort ) ) ) ) :part ( z10 eye :ARG1-of ( z11 black ) ) ) )
(z0 / refer-01
    :ARG0 (z1 / letter
              :mod (z2 / he))
    :ARG1 (z3 / devil
              :ARG1-of (z4 / find-01
                           :location (z5 / and
                                         :op1 (z6 / country
                                                  :name (z7 / name
                                                            :op1 "Brazil"))
                                         :op2 (z8 / forest
                                                  :mod (z9 / sort))))
              :part (z10 / eye
                         :ARG1-of (z11 / black-04))))
he letter refers to the black eyed devil which is found in Brazil and sorts ofraina .
z1 :mod z2
z0 :ARG0 z1
z10 :ARG1-of z11
z3 :part z10
z0 :ARG1 z3
z3 :ARG1-of z4
z6 :name z7
z7 :op1 0
z5 :op1 z6
z4 :location z5
z8 :mod z9
z5 :op2 z8