A man and a child stand next to a blue and black tube.
The man and child are sitting at a picnic table.
The two cannot stand next to tube and sit on a table at the same time.
exists s1 s2 s3 x1 x2 x3 x4 x5.(a_topic(s1) & subset_of(x2,s1) & to(x4,x5) & n_tube(x5) & a_black(s3) & Theme(s3,x5) & a_blue(s2) & Theme(s2,x5) & next(x2,x4) & n_thing(x4) & n_stand(x2) & of(x2,x3) & n_child(x3) & subset_of(x1,s1) & n_man(x1))
exists e1 x1 x2 x3 x4 x5.(n_child(x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1) & at(e1,x4) & n_table(x4) & of(x4,x5) & n_picnic(x5) & Actor(e1,x1) & v_sit(e1))