A man working on his computer.
A man plays video games online with his friends.
just because a man is working on his computer doesn't mean he is playing video games online with his friends.
exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_computer(x3) & of(x3,x1) & n_male(x1) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_man(x1))
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & with(x2,x4) & n_friend(x4) & of(x4,x1) & n_male(x1) & Time(x2,x3) & n_online(x3) & n_game(x2) & a_video(s1) & Theme(s1,x2) & n_man(x1))