Many people walking together on pavement near a brick building with other people looking on.
The people looking on are people watching until their next class starts
The people watching are not necessarily only watching until their next class starts and just because the building is brick doesn't mean that they are near where classes are.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(x1) & for(e1,e2) & a_on(s2) & Manner(e2,s2) & Actor(e2,x2) & v_look(e2) & with(e1,x6) & -(x6 = x1) & n_people(x1) & n_people(x1) & n_people(x6) & on(e1,x3) & near(x3,x4) & n_building(x4) & of(x4,x5) & n_brick(x5) & n_pavement(x3) & a_together(s1) & Manner(e1,s1) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_quantity(x1))
exists e1 e2 p1 s1 s2 x1 x2 x3.(n_start(x2) & of(x2,x3) & n_class(x3) & a_next(s1) & Theme(s1,x2) & of(x2,x1) & n_thing(x1) & n_people(x1) & for(p1,e2) & a_on(s2) & Manner(e2,s2) & Actor(e2,x1) & v_look(e2) & for(p1,e1) & until(e1,x2) & Actor(e1,x1) & v_watch(e1) & exists x4.((x1 = x4) & n_people(x4)))