man and women walking side by side on the street.
man and women running side by side on the lava filled street.
It is impossible for people to running and walking at the same time
exists e1 s1 x1 x2 x3 x4 x5 x6.(n_street(x6) & a_topic(s1) & subset_of(x2,s1) & by(e1,x5) & on(x5,x6) & n_side(x5) & Theme(e1,x4) & Actor(e1,x3) & v_walk(e1) & n_side(x4) & (x2 = x3) & n_woman(x2) & subset_of(x1,s1) & n_man(x1))
exists e1 e2 x1 x2 x3 x4 x5 x6 x7 x8.(n_lava(x7) & Theme(e2,x8) & Actor(e2,x1) & v_fill(e2) & n_street(x8) & subset_of(x3,x1) & on(e1,x7) & by(e1,x6) & n_side(x6) & Theme(e1,x5) & Actor(e1,x4) & v_run(e1) & n_side(x5) & (x3 = x4) & n_woman(x3) & subset_of(x2,x1) & n_man(x2))