Currently, there are no plans on how to label the variants after the 24 letters of the Greek alphabet are used up. The Greek-letter labelling proposed by the WHO is therefore an official attempt to provide the convenience of simple, uncontroversial monikers. But for general purposes, journalism included, the simplicity of beta is probably betteras is alpha for B.1.1.7, etc, the so-called Kent or UK or British variant, gamma for P.1, etc, (the Brazilian variant) and delta for B.1.617.2 (the Indian variant). The WHO declared that variants of interest and variants of concern will receive a designated Greek letter listed on its website. Experts will no doubt continue to use them.
crime reports are impossible to solve.
( z0 possible :ARG1 ( z1 solve :ARG1 ( z2 report :ARG1 ( z3 crime ) ) ) :polarity - )
(z0 / possible-01
    :ARG1 (z1 / solve-01
              :ARG1 (z2 / report-01
                        :ARG1 (z3 / crime-02)))
    :polarity -)
crime reports are impossible to solve .
z2 :ARG1 z3
z0 :polarity 0
z0 :ARG1 z1
z1 :ARG1 z2