An animal is attempting to cross the river.
A animal is swimming outside.
The animal is swimming in order to cross the river.  Rivers are always outside.
exists e1 p1 x1 x2.(n_river(x2) & Topic(e1,p1) & Actor(e1,x1) & v_attempt(e1) & exists e2.(Theme(e2,x2) & Actor(e2,x1) & v_cross(e2)) & n_animal(x1))
exists e1 s1 x1.(a_outside(s1) & Manner(e1,s1) & Actor(e1,x1) & v_swim(e1) & n_animal(x1))