A man plays guitar for a woman and child.
A man playing for his family.
A man playing guitar for woman and child may not be his family.
exists e1 x1 x2 x3 x4 x5.(for(e1,x3) & n_child(x5) & n_woman(x4) & subset_of(x5,x3) & subset_of(x4,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_guitar(x2) & n_man(x1))
exists e1 x1 x2 x3.(a_topic(x1) & for(e1,x3) & n_family(x3) & of(x3,x1) & n_male(x1) & Actor(e1,x2) & v_play(e1) & (x1 = x2) & n_man(x1))