Students are sitting in a classroom listening to six people who are teaching.
Children are learning about world history.
World history is not the only curricula that can be learned.
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 e1 x1 x2 x3.(about(e1,x2) & n_history(x2) & of(x2,x3) & n_world(x3) & Actor(e1,x1) & v_learn(e1) & n_child(x1))