People playing a game by jumping in beanbags.
There are people jumping around.
People are jumping in beanbags, therefore there must be people jumping around.
exists e1 e2 x1 x2 x3 x4.(a_topic(x1) & by(e1,e2) & in(e2,x4) & n_beanbag(x4) & Actor(e2,x2) & v_jump(e2) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_game(x3) & (x1 = x2) & n_people(x1))
exists p1 x1 e1 s1 x2 x3.((x1 = x2) & a_around(s1) & Manner(e1,s1) & Actor(e1,x3) & v_jump(e1) & (x2 = x3) & n_people(x2))