A Chinese man in a white shirt pushing a wheelchair.
there is a man in a white shirt
Because the man is in a white shirt, he is pushing a wheelchair.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_push(e1) & n_wheelchair(x4) & (x2 = x3) & n_shirt(x2) & a_white(s2) & Theme(s2,x2) & n_man(x1) & a_chinese(s1) & Theme(s1,x1))
exists p1 x1 s1 x2 x3.((x1 = x2) & in(x2,x3) & n_shirt(x3) & a_white(s1) & Theme(s1,x3) & n_man(x2))