A man smithing in a shop.
A man is writing a letter at his desk.
A man who is smithing cannot also be writing a letter. One cannot be in a blacksmith shop and at a desk simultaneously.
exists e1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_shop(x3) & Actor(e1,x2) & v_smithe(e1) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_write(e1) & at(x2,x3) & n_desk(x3) & of(x3,x1) & n_male(x1) & n_letter(x2) & n_man(x1))