A dog jumps off a wooden porch.
The porch is made of cement.
A porch cannot be made of wood and cement consecutively.
exists e1 s1 s2 x1 x2.(a_off(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_jump(e1) & n_porch(x2) & a_wooden(s1) & Theme(s1,x2) & n_dog(x1))
exists e1 x1 x2.(n_porch(x1) & of(e1,x2) & n_cement(x2) & Theme(e1,x1) & v_make(e1))