Man sits beside water while reading something.
a man reads a newspaper at a cafe
That the man is beside the water reading does not necessarily mean he is reading at a cafe.
exists e2 e1 x1 x2 x3.(while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_read(e2) & n_thing(x3) & beside(e1,x2) & n_water(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1))
exists e1 x1 x2 x3.(at(e1,x3) & n_cafe(x3) & Theme(e1,x2) & Actor(e1,x1) & v_read(e1) & n_newspaper(x2) & n_man(x1))