A group of people advertising for free hugs.
A group of people are shooting for an advertisment.
Although they are advertising, it does not imply they are shooting an advertisment.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & for(e1,x4) & n_hug(x4) & a_free(s1) & Theme(s1,x4) & Actor(e1,x3) & v_advertise(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
exists e1 x1 x2 x3.(for(e1,x3) & n_advertisment(x3) & Actor(e1,x1) & v_shoot(e1) & of(x1,x2) & n_people(x2) & n_group(x1))