A group stands on tan checkered tiles.
A crowd stays put on the tiles.
Crowd is another word for group of people; therefore, a group of people standing on tiles is the same as a crowd standing on tiles.
exists e1 s1 s2 x1 x2.(on(e1,x2) & n_tile(x2) & a_checkered(s2) & Theme(s2,x2) & a_tan(s1) & Theme(s1,x2) & Actor(e1,x1) & v_stand(e1) & n_group(x1))
exists e1 p1 x1 x2.(n_tile(x2) & exists e2.(on(e2,x2) & Theme(e2,x1) & v_put(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_stay(e1) & n_crowd(x1))