A man is hanging onto the decorative part of a building.
Tom was installing a colorful window frame.
Not all men are Tom.The fact that a man is hanging onto the decorative part of a building doesn't imply that he is installing a colorful window frame.
exists e1 s1 x1 x2 x3.(n_part(x2) & a_decorative(s1) & Theme(s1,x2) & onto(e1,x2) & of(x2,x3) & n_building(x3) & Actor(e1,x1) & v_hang(e1) & n_man(x1))
exists e1 s1 x1 x2 x3.(ne_per_tom(x1) & Theme(e1,x2) & Actor(e1,x1) & v_install(e1) & n_frame(x2) & of(x2,x3) & n_window(x3) & a_colorful(s1) & Theme(s1,x2))