A group of people are talking next to a bus stop.
People are waiting at the bus stop for the pony express.
People talking next to a bus stop are not necessarily waiting for the pony express.
exists e1 s1 x1 x2 x3 x4.(a_next(s1) & Manner(e1,s1) & to(e1,x3) & n_stop(x3) & of(x3,x4) & n_bus(x4) & Actor(e1,x1) & v_talk(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 e2 x1 x2 x3 x4 x5.(n_pony(x5) & n_stop(x3) & of(x3,x4) & n_bus(x4) & Actor(e2,x1) & v_express(e2) & at(e1,x3) & for(x3,x5) & Actor(e1,x2) & v_wait(e1) & (x1 = x2) & n_people(x1))