A group of patriotic people are celebrating.
The group of people are American
American people are not the only people who can be patriotic and celebrate.
exists e1 s1 x1 x2.(Actor(e1,x1) & v_celebrate(e1) & of(x1,x2) & n_people(x2) & a_patriotic(s1) & Theme(s1,x2) & n_group(x1))
exists p1 x1 x2.(n_group(x1) & exists x3.((x1 = x3) & n_american(x3)) & of(x1,x2) & n_people(x2))