Person kayaking in white water.
A kayaker goes down the Dechutes river in Oregon.
Kayaking does not imply going down the Dechutes river in Oregon.
exists e1 s1 x1 x2.(ne_nam_person(x1) & in(e1,x2) & n_water(x2) & a_white(s1) & Theme(s1,x2) & Actor(e1,x1) & v_kayake(e1))
exists e1 x1 x2 x3 x4.(ne_geo_oregon(x4) & n_river(x2) & (x2 = x3) & ne_geo_dechutes(x3) & down(e1,x2) & in(x2,x4) & Actor(e1,x1) & v_go(e1) & n_kayaker(x1))