A man is taking a picture while people sit in bleachers in the background.
A man takes pictures of people at a football game.
People sitting on bleachers does not imply it is at a football game.
exists e1 p1 x1 x2 x5.(n_background(x5) & exists e2 x3 x4.(in(e2,x5) & in(e2,x4) & n_bleacher(x4) & Actor(e2,x3) & v_sit(e2) & n_people(x3)) & while(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_picture(x2) & n_man(x1))
exists e1 x1 x2 x3 x4 x5.(at(e1,x4) & n_game(x4) & of(x4,x5) & n_football(x5) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & of(x2,x3) & n_people(x3) & n_picture(x2) & n_man(x1))