The man and women is laying on the couch smiling.
They man and woman are happy.
Smiling is a way of showing that the man and woman are happy.
exists e1 e2 x1 x2 x3 x4 x5.(n_couch(x4) & n_man(x2) & on(e1,x4) & Actor(e2,x5) & v_smile(e2) & (x4 = x5) & Actor(e1,x1) & v_lay(e1) & subset_of(x3,x1) & n_woman(x3) & subset_of(x2,x1))
exists s1 s2 x1 x2 x3.(Theme(s2,x1) & a_happy(s2) & subset_of(x3,x1) & n_woman(x3) & subset_of(x2,x1) & n_man(x2) & a_they(s1) & Theme(s1,x2))