A crowd is watching fireworks at night.
People waiting in line for the movies.
Crowd is a state of people who are to and fro and if people are in line, they are not said in a crowd.
exists e1 x1 x2 x3.(at(e1,x3) & n_night(x3) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_firework(x2) & n_crowd(x1))
exists e1 x1 x2 x3 x4.(n_movie(x4) & a_topic(x1) & for(e1,x4) & in(e1,x3) & n_line(x3) & Actor(e1,x2) & v_wait(e1) & (x1 = x2) & n_people(x1))