People wait for trains in an empty train station.
People wait for their family members to arrive at the train station.
Just because people wait for trains in an empty train station doesn't imply wait for their family members to arrive.
exists e1 s1 x1 x2 x3 x4.(for(e1,x2) & in(x2,x3) & n_station(x3) & of(x3,x4) & n_train(x4) & a_empty(s1) & Theme(s1,x3) & n_train(x2) & Actor(e1,x1) & v_wait(e1) & n_people(x1))
exists e1 p1 x1 x2 x3 x4 x5.(n_station(x4) & of(x4,x5) & n_train(x5) & for(e1,x2) & n_member(x2) & of(x2,x3) & n_family(x3) & of(x2,x1) & n_thing(x1) & Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2.(at(e2,x4) & Actor(e2,x1) & v_arrive(e2)) & n_people(x1))