Passersby look on at an accident involving an SUV and a bicyclist.
There is no accident.
An accident is different than no accident.
exists e1 s1 x1 x2 x3 x4 x5 x6.(r_on(e1) & at(e1,x3) & involve(x3,x4) & subset_of(x6,x4) & n_bicyclist(x6) & subset_of(x5,x4) & ne_org_suv(x5) & n_accident(x3) & Theme(e1,x2) & Actor(e1,x1) & v_event(e1) & n_look(x2) & a_passersby(s1) & Theme(s1,x2) & n_thing(x1))
exists p1 x1.-exists x2.((x1 = x2) & n_accident(x2))