A person in a kayak is going over a small waterfall.
A guy about to capsizes.
Going over a small waterfall does not imply about to capsize.
exists e1 s1 s2 x1 x2 x3.(a_over(s2) & Manner(e1,s2) & Theme(e1,x3) & Actor(e1,x1) & v_go(e1) & n_waterfall(x3) & a_small(s1) & Theme(s1,x3) & in(x1,x2) & n_kayak(x2) & n_person(x1))
exists s1 x1 x2.(a_topic(x1) & about(x1,x2) & n_capsize(x2) & a_to(s1) & Theme(s1,x2) & n_guy(x1))