A man and a child sitting in a blue net.
A man and a child sitting on a hard floor.
they are either sitting on a hard floor or in a blue net but not both.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(s1) & subset_of(x2,s1) & in(e1,x4) & n_net(x4) & a_blue(s2) & Theme(s2,x4) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_child(x2) & subset_of(x1,s1) & n_man(x1))
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(s1) & subset_of(x2,s1) & on(e1,x4) & n_floor(x4) & a_hard(s2) & Theme(s2,x4) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_child(x2) & subset_of(x1,s1) & n_man(x1))