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. ALPHA, BETA, gamma, delta. The B.1.351 variant first found in South Africa was labeled as Beta, the P.1 variant first discovered in Brazil became Gamma and the B.1.617.2 variant first detected in India is now Delta. Greek letters are often used as parts of scientific labels, which adds authority to the idea. Earlier this month, the Indian government ordered social media platforms to take down content that referred to the Indian variant.
Epsilon refers to the B.1.170 and B.1. 190 prevailed over other references.
( z0 and :op ( z1 refer :ARG0 ( z2 ideal :name ( z3 name :op "Epsilon" ) ) :ARG1 ( z4 thing :name ( z5 name :op "B." :op "1.170" ) ) ) :op ( z6 prevail :ARG0 ( z7 and :op ( z8 law :name ( z9 name :op "B" :op 190 ) ) ) :ARG1 ( z10 thing :ARG1-of ( z11 reference ) :mod ( z12 other ) ) ) )
(z0 / and
    :op1 (z1 / refer-01
             :ARG0 (z2 / ideal
                       :name (z3 / name
                                 :op1 "Epsilon"))
             :ARG1 (z4 / thing
                       :name (z5 / name
                                 :op1 "B."
                                 :op2 "1.170")))
    :op2 (z6 / prevail-01
             :ARG0 (z7 / and
                       :op1 (z8 / law
                                :name (z9 / name
                                          :op1 "B"
                                          :op2 190)))
             :ARG1 (z10 / thing
                        :ARG1-of (z11 / reference-04)
                        :mod (z12 / other))))
Epsilon refers to the B. 1.170 and B. 1 . 190 prevailed over other references .
z2 :name z3
z3 :op1 4
z1 :ARG0 z2
z1 :ARG1 z4
z4 :name z5
z5 :op1 3
z5 :op2 0
z0 :op1 z1
z8 :name z9
z9 :op1 2
z7 :op1 z8
z9 :op2 1
z6 :ARG0 z7
z0 :op2 z6
z10 :mod z12
z6 :ARG1 z10
z10 :ARG1-of z11