A man is taking pictures by the water.
A man is taking pictures while sitting on a bench by the water.
A man can take pictures without sitting down.
exists e1 x1 x2 x3.(n_water(x3) & by(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_picture(x2) & n_man(x1))
exists e1 e2 x1 x2 x3 x4.(n_water(x4) & while(e1,e2) & by(e2,x4) & on(e2,x3) & n_bench(x3) & Actor(e2,x1) & v_sit(e2) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_picture(x2) & n_man(x1))