The early stages of a water balloons toss.
There are people outside.
There's nothing to imply that the people are outside.
exists s1 x1 x2 x3 x4.(n_stage(x1) & a_early(s1) & Theme(s1,x1) & a_topic(x1) & of(x1,x2) & n_toss(x2) & of(x2,x4) & n_balloon(x4) & of(x2,x3) & n_water(x3))
exists p1 s1 x1.(a_outside(s1) & Manner(p1,s1) & exists x2.((x1 = x2) & n_people(x2)))