Russia still has not acknowledged the results of the U.S. presidential race. Harris." Harris." "We congratulate Mr. Biden and Ms. "We congratulate Mr. Biden and Ms.
Russian buyers did not exist.
( z0 exist :ARG1 ( z1 person :ARG0-of ( z2 buy ) :mod ( z3 country :name ( z4 name :op "Russia" ) ) ) :polarity - )
(z0 / exist-01
    :ARG1 (z1 / person
              :ARG0-of (z2 / buy-01)
              :mod (z3 / country
                       :name (z4 / name
                                 :op1 "Russia")))
    :polarity -)
Russian buyers did not exist .
z3 :name z4
z4 :op1 1
z1 :mod z3
z1 :ARG0-of z2
z0 :polarity 0
z0 :ARG1 z1