Two girlfriends smiling.
Two girls are smiling
Girlfriends can refer to two girls that are friends or two women in a same sex relationship.
exists e1 x1.(Actor(e1,x1) & v_smile(e1) & n_girlfriend(x1) & card_eq_2(x1))
exists e1 x1.(Actor(e1,x1) & v_smile(e1) & n_girl(x1) & card_eq_2(x1))