three people standing in line.
Some people are standing.
Three people are standing, and they are in a line.
exists e1 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_line(x3) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_people(x1) & card_eq_3(x1))
exists e1 x1.(Actor(e1,x1) & v_stand(e1) & n_people(x1))