Two people dig with shovels at a playground by the ocean.
Two people are playing in a sandbox, building sand castles.
Not all people dig in sandboxes or build sand castles.
exists x1 x2 x3 x4 x5.(n_ocean(x5) & a_topic(x1) & with(x1,x3) & at(x3,x4) & by(x4,x5) & n_playground(x4) & n_shovel(x3) & Time(x1,x2) & n_dig(x2) & n_people(x1) & card_eq_2(x1))
exists e1 e2 x1 x2 x3 x4.(for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_build(e2) & n_castle(x3) & of(x3,x4) & n_sand(x4) & in(e1,x2) & n_sandbox(x2) & Actor(e1,x1) & v_play(e1) & n_people(x1) & card_eq_2(x1))