A man leans against a green column in the subway.
A man leans against a column in the subway while waiting for a friend.
All men leaning against column in subway are not waiting for a friend.
exists e1 s1 x1 x2 x3.(n_subway(x3) & against(e1,x2) & in(x2,x3) & n_column(x2) & a_green(s1) & Theme(s1,x2) & Actor(e1,x1) & v_lean(e1) & n_man(x1))
exists e1 e2 x1 x2 x3 x4.(n_subway(x3) & while(e1,e2) & for(e2,x4) & n_friend(x4) & Actor(e2,x1) & v_wait(e2) & against(e1,x2) & in(x2,x3) & n_column(x2) & Actor(e1,x1) & v_lean(e1) & n_man(x1))