A man jumping on a skiing board.
A man is at home napping.
A man cannot be jumping on a skiing board and nap at home simultaneously.
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x3) & n_board(x3) & of(x3,x4) & n_skiing(x4) & Actor(e1,x2) & v_jump(e1) & (x1 = x2) & n_man(x1))
exists p1 x1.(exists x2 x3.(at(x1,x2) & n_napping(x2) & of(x2,x3) & n_home(x3)) & n_man(x1))