A man is rowing a canoe in a body of water.
A man is frightened while riding in a canoe.
He may not be frightened
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_row(e1) & in(x2,x3) & of(x3,x4) & n_water(x4) & n_body(x3) & n_canoe(x2) & n_man(x1))
exists e1 s1 x1 x2.(while(s1,e1) & in(e1,x2) & n_canoe(x2) & Actor(e1,x1) & v_ride(e1) & Theme(s1,x1) & a_frightened(s1) & n_man(x1))