A man is dancing before a band of musicians.
The man is performing.
A man is performing in front of a band of musicians.
exists e1 x1 x2 x3.(before(e1,x2) & of(x2,x3) & n_musician(x3) & n_band(x2) & Actor(e1,x1) & v_dance(e1) & n_man(x1))
exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_perform(e1))