some is waiting at a bus stop station
Problem. see below
Some is not a correct subject but that does not mean there is a problem.
exists e1 x1 x2 x3 x4.(at(e1,x2) & n_station(x2) & of(x2,x4) & n_stop(x4) & of(x2,x3) & n_bus(x3) & Actor(e1,x1) & v_wait(e1) & n_thing(x1))
exists e1 s1 x1 x2.(on(e1,x2) & ne_nam_problem(x2) & a_below(s1) & Manner(e1,s1) & Actor(e1,x1) & v_see(e1) & n_thing(x1))