A man is putting a life preserver on an individual.
A man is relaxing and smoking a pipe.
One does not put a life preserver while smoking
exists e1 x1 x2 x3 x4.(on(e1,x4) & n_individual(x4) & Theme(e1,x2) & Actor(e1,x1) & v_put(e1) & n_preserver(x2) & of(x2,x3) & n_life(x3) & n_man(x1))
exists e1 e2 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x3) & v_smoke(e2) & n_pipe(x4) & n_man(x3) & Theme(e1,x2) & Actor(e1,x1) & v_relax(e1) & n_pipe(x2) & n_man(x1))