People gathered in an artist's studio.
people watching an artist perform
Just because people are gathered in a an artist's studio, that doesn't mean they are there to watch an artist perform.
exists e1 x1 x2 x3.(in(e1,x3) & n_studio(x3) & of(x3,x2) & n_artist(x2) & Actor(e1,x1) & v_gather(e1) & n_people(x1))
exists e2 e1 x1 x2 x3.(Actor(e2,x1) & v_perform(e2) & Theme(e1,x3) & Actor(e1,x2) & v_watch(e1) & n_artist(x3) & (x1 = x2) & n_people(x1))