Several people wearing colorful clothing and hats perform in an open area.
The people are wearing drab clothing.
The first sentence talks about the people wearing colorful clothing. The second one talks about people wearing drab clothing. Drab clothing and colorful clothing is not the same thing.
exists e1 e2 s1 s2 s3 x1 x2 x3 x4 x5 x6.(in(e2,x6) & n_area(x6) & a_open(s3) & Theme(s3,x6) & Actor(e2,x1) & v_perform(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_hat(x5) & n_clothing(x4) & subset_of(x5,x3) & subset_of(x4,x3) & a_colorful(s2) & Theme(s2,x3) & (x1 = x2) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_clothing(x2) & a_drab(s1) & Theme(s1,x2))