A group of people are standing around music production equipment.
The people are artists.
Not all people are artists.
exists e1 x1 x2 x3 x4 x5.(around(e1,x3) & n_equipment(x3) & of(x3,x5) & n_production(x5) & of(x3,x4) & n_music(x4) & Actor(e1,x1) & v_stand(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists p1 x1.(n_people(x1) & exists x2.((x1 = x2) & n_artist(x2)))