A group of adults, inside a home, sitting on chairs arranged in a circle, playing a type of musical instruments.
Adults are in a rock band.
Because instruments are playing does not mean they are playing in a rock band.
exists e1 e3 e2 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(a_topic(x1) & Theme(e3,x9) & Actor(e3,x8) & v_play(e3) & of(x9,x10) & n_instrument(x10) & a_musical(s1) & Theme(s1,x10) & n_type(x9) & (x1 = x8) & on(e1,x5) & in(e2,x7) & n_circle(x7) & Theme(e2,x6) & v_arrange(e2) & (x5 = x6) & n_chair(x5) & Actor(e1,x4) & v_sit(e1) & (x1 = x4) & of(x1,x2) & inside(x2,x3) & n_home(x3) & n_adult(x2) & n_group(x1))
exists p1 x1.(exists x2 x3.(in(x1,x2) & n_band(x2) & of(x2,x3) & n_rock(x3)) & n_adult(x1))