A man walking up some steep steps carrying a bag.
A woman is walking down the steps.
There is either a man or a woman. The individual can't be walking up and walking down the stairs at the same time.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & a_up(s2) & Manner(e2,s2) & Theme(e2,x3) & Actor(e2,x2) & v_walk(e2) & Theme(e1,x5) & Actor(e1,x4) & v_carry(e1) & n_bag(x5) & (x3 = x4) & n_step(x3) & a_steep(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
exists e1 s1 x1 x2.(n_step(x2) & a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_woman(x1))