Students are sitting in a classroom listening to six people who are teaching.
a kid at home alone
A classroom is not at home
exists e1 e2 x1 x2 x3 x4 x5.(to(e1,x4) & Actor(e2,x5) & v_teach(e2) & (x4 = x5) & n_people(x4) & card_eq_6(x4) & in(e1,x2) & n_listening(x2) & of(x2,x3) & n_classroom(x3) & Actor(e1,x1) & v_sit(e1) & n_student(x1))
exists x1 x2.(a_topic(x1) & at(x1,x2) & r_alone(x2) & n_home(x2) & n_kid(x1))