A man with a messenger bag on his shoulder photographs a building while a bicyclist goes by him.
A woman eats a banana split.
If the man photographs a building, then the woman could be eating anything and not just a banana split
exists e1 p1 x1 x2 x3 x4 x5.(exists e2 x6.(by(e2,x1) & Actor(e2,x6) & v_go(e2) & n_bicyclist(x6)) & n_male(x1) & n_male(x1) & while(e1,p1) & Theme(e1,x5) & Actor(e1,x1) & v_photograph(e1) & n_building(x5) & with(x1,x2) & on(x2,x4) & n_shoulder(x4) & of(x4,x1) & n_bag(x2) & of(x2,x3) & n_messenger(x3) & n_man(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_eat(e1) & n_split(x2) & of(x2,x3) & n_banana(x3) & n_woman(x1))