A wedding ceremony in a church.
a man plays the piano
If there is a wedding ceremony, there would be more than just one man there.
exists x1 x2 x3.(a_topic(x1) & in(x1,x3) & n_church(x3) & n_ceremony(x1) & of(x1,x2) & n_wedding(x2))
exists e1 x1 x2.(n_piano(x2) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_man(x1))