A woman has been knocked down by strong waves in the ocean
The woman was dragging a surfboard behind her.
Being knocked down does not imply dragging a surfboard.
exists e1 s1 s2 x1 x2 x3.(n_ocean(x3) & in(e1,x3) & Actor(e1,x2) & n_wave(x2) & a_strong(s2) & Theme(s2,x2) & a_down(s1) & Manner(e1,s1) & Theme(e1,x1) & v_knock(e1) & n_woman(x1))
exists e1 x1 x2.(n_female(x1) & n_woman(x1) & behind(e1,x1) & Theme(e1,x2) & Actor(e1,x1) & v_drag(e1) & n_surfboard(x2))