Four young adults with two microphones make silly faces at the camera.
The adults are in front of the camera being silly.
'in front of the camera being silly' is the same as 'make silly faces at the camera'
exists e1 s1 s2 x1 x2 x3 x4.(n_camera(x4) & at(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_make(e1) & n_face(x3) & a_silly(s2) & Theme(s2,x3) & with(x1,x2) & n_microphone(x2) & card_eq_2(x2) & n_adult(x1) & a_young(s1) & Theme(s1,x1) & card_eq_4(x1))
exists p1 x1 x3.(n_camera(x3) & n_adult(x1) & exists s1 x2 x4.(in(x1,x2) & of(x2,x3) & Theme(s1,x4) & a_silly(s1) & (x3 = x4) & n_front(x2)))