A group of mixed aged people are sitting on the sidewalk waiting in a line.
A bunch of people waiting in line.
A group refers to more than one person, so a bunch of people waiting in line is the same as a group of people waiting in line.
exists e1 e3 e2 s1 x1 x2 x3 x4.(n_sidewalk(x3) & for(e2,e3) & in(e3,x4) & n_line(x4) & Actor(e3,x1) & v_wait(e3) & on(e2,x3) & Actor(e2,x1) & v_sit(e2) & of(x1,x2) & n_people(x2) & Theme(e1,x2) & v_age(e1) & a_mixed(s1) & Theme(s1,x2) & n_group(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & in(e1,x4) & n_line(x4) & Actor(e1,x3) & v_wait(e1) & (x2 = x3) & n_people(x2) & n_bunch(x1))