Man sitting by blue doors.
A man taking a seat.
If the man is sitting, he is taking a seat.
exists e1 s1 x1 x2 x3.(a_topic(x1) & by(e1,x3) & n_door(x3) & a_blue(s1) & Theme(s1,x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_take(e1) & n_seat(x3) & (x1 = x2) & n_man(x1))