The white swan is taking off from the water.
A white swan is preparing to fly west.
Not all swans taking off is flying to the west.
exists e1 s1 s2 x1 x2.(n_water(x2) & n_swan(x1) & a_white(s1) & Theme(s1,x1) & from(e1,x2) & a_off(s2) & Manner(e1,s2) & Actor(e1,x1) & v_take(e1))
exists e1 p1 s1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_prepare(e1) & exists e2 x2.(Theme(e2,x2) & Actor(e2,x1) & v_fly(e2) & n_west(x2)) & n_swan(x1) & a_white(s1) & Theme(s1,x1))