Several people are fishing in an extensive body of water beside a large bridge.
Several people are base jumping off of a large bridge.
Fishing and base jumping are different actions. The locations of the activities are different. "In an extensive body of water beside a large bridge" is different from "off a large bridge".
exists e1 s1 s2 s3 x1 x2 x3 x4.(in(e1,x2) & beside(x2,x4) & n_bridge(x4) & a_large(s3) & Theme(s3,x4) & of(x2,x3) & n_water(x3) & n_body(x2) & a_extensive(s2) & Theme(s2,x2) & Actor(e1,x1) & v_fish(e1) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists e1 s1 s2 s3 x1 x2.(for(s2,e1) & of(e1,x2) & n_bridge(x2) & a_large(s3) & Theme(s3,x2) & r_off(e1) & Actor(e1,x1) & v_jump(e1) & Theme(s2,x1) & a_base(s2) & n_people(x1) & a_several(s1) & Theme(s1,x1))