A man and a woman are dancing with their hair up.
Husband and wife are dancing.
A man and woman are not necessarily husband and wife.
exists e1 s1 x1 x2 x3 x4.(a_up(s1) & Manner(e1,s1) & with(e1,x4) & n_hair(x4) & of(x4,x2) & n_thing(x2) & Actor(e1,x1) & v_dance(e1) & subset_of(x3,x1) & n_woman(x3) & subset_of(x2,x1) & n_man(x2))
exists e1 x1 x2 x3.(ne_nam_husband(x2) & Actor(e1,x1) & v_dance(e1) & subset_of(x3,x1) & n_wife(x3) & subset_of(x2,x1))