A man is blowing a horn at a festival.
THe man owns the horn.
We have no idea if he owns the horn or if it is someone else's horn.
exists e1 x1 x2 x3.(at(e1,x3) & n_festival(x3) & Theme(e1,x2) & Actor(e1,x1) & v_blow(e1) & n_horn(x2) & n_man(x1))
exists e1 x1 x2 x3.(n_horn(x3) & Theme(e1,x3) & Actor(e1,x1) & v_own(e1) & n_man(x1) & (x1 = x2) & ne_nam_the(x2))