A man in a yellow shirt standing up.
A man is sitting down reading.
The man is standing up, not sitting down.
exists e1 s1 s2 x1 x2 x3.(a_topic(x1) & in(x1,x2) & a_up(s2) & Manner(e1,s2) & Actor(e1,x3) & v_stand(e1) & (x2 = x3) & n_shirt(x2) & a_yellow(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2.(down(e1,x2) & n_reading(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1))