A man kayaks through rough water.
He might overturn his kayak
Rough water doesn't necessarily mean the man might overturn his kayak.
exists e1 s1 x1 x2.(through(e1,x2) & n_water(x2) & a_rough(s1) & Theme(s1,x2) & Actor(e1,x1) & v_kayak(e1) & n_man(x1))
exists e1 p1 x1 x2.(n_kayak(x2) & of(x2,x1) & n_male(x1) & n_male(x1) & exists e2.(Theme(e2,x2) & Actor(e2,x1) & v_overturn(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_might(e1))