Two young boys running down an upper level breezeway.
The boys are sitting on the floor of an apartment
The boys could not be sitting and running at the same time.
exists e1 s1 s2 s3 x1 x2 x3 x4.(a_topic(x1) & a_down(s3) & Manner(e1,s3) & Theme(e1,x3) & Actor(e1,x2) & v_run(e1) & n_breezeway(x3) & of(x3,x4) & n_level(x4) & a_upper(s2) & Theme(s2,x3) & (x1 = x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_floor(x2) & n_boy(x1) & on(e1,x2) & of(x2,x3) & n_apartment(x3) & Actor(e1,x1) & v_sit(e1))