Reagan was seriously wounded by a bullet fired by John Hinckley Jr. in an attempted assassination on March 30, 1981.
Reagan was shot in the year after 1980.
Reagan was shot in 1981. The system was confused by the year.
( z1 shoot :ARG1 ( z2 person :name ( z3 name :op "Reagan" ) ) :time ( z4 after :op ( z5 date-entity :year 1980 ) :quant ( z6 year ) ) )