A musician performing during the world event concert held in a local church in the city of angels.
A musician plays the guitar and sings at a concert.
Just because he is a musician doesn't necessarily mean he is playing the guitar or singing at the local church.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(n_city(x8) & n_concert(x3) & of(x3,x5) & n_event(x5) & of(x3,x4) & n_world(x4) & a_topic(x1) & during(e1,x3) & in(e2,x7) & in(x7,x8) & of(x8,x9) & n_angel(x9) & n_church(x7) & a_local(s1) & Theme(s1,x7) & Theme(e2,x6) & v_hold(e2) & (x3 = x6) & Actor(e1,x2) & v_perform(e1) & (x1 = x2) & n_musician(x1))
exists e1 x1 x2 x3 x4 x5.(n_sing(x4) & n_guitar(x3) & subset_of(x4,x2) & subset_of(x3,x2) & at(e1,x5) & n_concert(x5) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_musician(x1))