A musician wearing a leather harness playing a musical instrument at a concert.
A musician playing at a concert.
Playing at a concert is a shorter way of saying playing a musical instrument at a concert.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & Theme(e2,x3) & Actor(e2,x2) & v_wear(e2) & Theme(e1,x6) & Actor(e1,x5) & v_play(e1) & at(x6,x7) & n_concert(x7) & n_instrument(x6) & a_musical(s1) & Theme(s1,x6) & (x3 = x5) & n_harness(x3) & of(x3,x4) & n_leather(x4) & (x1 = x2) & n_musician(x1))
exists s1 x1 x2.(a_topic(x1) & at(x1,x2) & n_concert(x2) & n_playing(x1) & a_musician(s1) & Theme(s1,x1))