Two people carrying bags walk together.
A man and his girlfriend are carrying bags walking together.
Two people carrying bags are not necessarily man and his girlfriend.
exists e1 e2 p1 x1 x2 x3 x4.(a_topic(x1) & Theme(e2,x3) & Actor(e2,x2) & v_carry(e2) & exists s1.(Theme(s1,x4) & a_together(s1)) & Recipient(e1,p1) & Topic(e1,x4) & v_walk(e1) & (x3 = x4) & n_bag(x3) & (x1 = x2) & n_people(x1) & card_eq_2(x1))
exists e1 e2 s1 x1 x2 x3 x4 x5.(Theme(e2,x4) & Actor(e2,x1) & v_carry(e2) & a_together(s1) & Manner(e1,s1) & Actor(e1,x5) & v_walk(e1) & (x4 = x5) & n_bag(x4) & subset_of(x3,x1) & n_girlfriend(x3) & of(x3,x2) & n_male(x2) & subset_of(x2,x1) & n_man(x2))