A group of people walking through a park with signs.
The group of people are all wearing white hats.
Not all people who walk through a park with signs wear white hats.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & with(e1,x5) & n_sign(x5) & through(e1,x4) & n_park(x4) & Actor(e1,x3) & v_walk(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
exists e1 s1 s2 x1 x2 x3.(n_group(x1) & a_all(s2) & Manner(e1,s2) & Theme(e1,x3) & Actor(e1,x1) & v_wear(e1) & n_hat(x3) & a_white(s1) & Theme(s1,x3) & of(x1,x2) & n_people(x2))