A lot of people are gathered around a couple of people who are dressed in costumes.
Two people are wearing costumes.
Two people is an equivalent form of a couple of people and wearing costumes is the same as being dressed in costumes.
exists e1 e2 x1 x2 x3 x4 x5 x6.(around(e1,x3) & of(x3,x4) & in(e2,x6) & n_costume(x6) & Theme(e2,x5) & v_dress(e2) & (x4 = x5) & n_people(x4) & n_couple(x3) & Theme(e1,x1) & v_gather(e1) & of(x1,x2) & n_people(x2) & n_lot(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_costume(x2) & n_people(x1) & card_eq_2(x1))