People in animal costumes entertain a crowd.
People in animal costumes are behaving erratically.
people entertain is a performance and behaving erratically is acting bad.
exists e1 s1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_entertain(e1) & n_crowd(x3) & in(x1,x2) & n_costume(x2) & a_animal(s1) & Theme(s1,x2) & n_people(x1))
exists e1 s1 x1 x2 x3.(a_erratically(s1) & Manner(e1,s1) & Actor(e1,x1) & v_behave(e1) & in(x1,x2) & n_costume(x2) & of(x2,x3) & n_animal(x3) & n_people(x1))