A boy being swarmed by pigeons, marble building in the background.
The boy is being chased by geese.
Being swarmed by pigeons and chased by geese are completely different.
exists e1 x1 x2 x3 x4 x5 x6.(n_background(x6) & a_topic(x1) & Actor(e1,x3) & rel(x3,x4) & in(x4,x6) & n_building(x4) & of(x4,x5) & n_marble(x5) & n_pigeon(x3) & Theme(e1,x2) & v_swarm(e1) & (x1 = x2) & n_boy(x1))
exists e1 x1 x2.(n_boy(x1) & Actor(e1,x2) & n_goose(x2) & Theme(e1,x1) & v_chase(e1))