A dolphin is jumping out of the water.
There is a dolphin in the water.
The dolphin must be in the water to jump out of it.  A dolphin would not be jumping out of the water if there was no dolphin present.
exists e1 s1 x1 x2.(n_water(x2) & a_out(s1) & Manner(e1,s1) & of(e1,x2) & Actor(e1,x1) & v_jump(e1) & n_dolphin(x1))
exists p1 x1 x3.(n_water(x3) & exists x2.((x1 = x2) & in(x2,x3) & n_dolphin(x2)))