The brown-haired man and woman are posing for a picture.
The lovers are posing.
A man and a woman posing for a picture do not have to be lovers.
exists e1 s1 x1 x2 x3 x4.(n_woman(x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1) & a_brown-haired(s1) & Theme(s1,x1) & for(e1,x4) & n_picture(x4) & Actor(e1,x1) & v_pose(e1))
exists e1 x1.(n_lover(x1) & Actor(e1,x1) & v_pose(e1))