A guy typing on a laptop computer.
The man is writing the All American Novel.
A guy typing on a laptop does not necessarily imply writing the All American Novel.
exists e1 s1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_computer(x3) & a_laptop(s1) & Theme(s1,x3) & Actor(e1,x2) & v_type(e1) & (x1 = x2) & n_guy(x1))
exists e1 x1 x2 x3.(ne_nam_novel(x2) & (x2 = x3) & ne_nam_american(x3) & ne_nam_all(x2) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_write(e1))