White water rafter goes through a rough spot.
A young man negotiates the rapids in a raft.
The white water rafter could be either a man or a woman. Just because he or she goes through a rough spot does not necessarily mean that he negotiates the rapids.
exists e1 s1 s2 x1 x2 x3.(through(e1,x3) & n_spot(x3) & a_rough(s2) & Theme(s2,x3) & Actor(e1,x1) & v_go(e1) & n_rafter(x1) & of(x1,x2) & n_water(x2) & a_white(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(n_rapid(x2) & Theme(e1,x2) & Actor(e1,x1) & v_negotiate(e1) & in(x2,x3) & n_raft(x3) & n_man(x1) & a_young(s1) & Theme(s1,x1))