There are probabilities, and there are possibilities, said Banerjee. However, the case is not completely closed. But that does not in itself signal that something in particular is being hidden. HOW IMPORTANT IS IT TO UNDERSTAND THE ORIGIN? While the closest known viruses to Covid-19 have been found in bats, the 'evolutionary distance' between them is thought to be 'several decades'.
virus is spelled in the statement.
( z0 spell :ARG1 ( z1 virus ) :location ( z2 thing :ARG1-of ( z3 state ) ) )
(z0 / spell-01
    :ARG1 (z1 / virus)
    :location (z2 / thing
                  :ARG1-of (z3 / state-01)))
virus is spelled in the statement .
z0 :ARG1 z1
z0 :location z2
z2 :ARG1-of z3