A crowd of people standing together.
A couple of people walk around in a parking lot.
Crowd of people are a lot of people  while couple of people are just two people.
exists e1 s1 x1 x2 x3.(a_topic(x1) & of(x1,x2) & a_together(s1) & Manner(e1,s1) & Actor(e1,x3) & v_stand(e1) & (x2 = x3) & n_people(x2) & n_crowd(x1))
exists e1 p1 x1 x2 x3 x4 x5.(a_topic(x1) & in(e1,x4) & n_lot(x4) & of(x4,x5) & n_parking(x5) & exists s1.(Theme(s1,x3) & a_around(s1)) & Recipient(e1,p1) & Topic(e1,x3) & v_walk(e1) & (x1 = x3) & of(x1,x2) & n_people(x2) & n_couple(x1))