Children are listening to a man doing a demonstration in their classroom.
Humans are listening to a demonstration
Children are humans and they are listening to a man doing a demonstration in their classroom.
exists e2 e1 x1 x2 x3 x4 x5.(to(e1,x2) & in(e2,x5) & n_classroom(x5) & of(x5,x1) & n_thing(x1) & Theme(e2,x4) & Actor(e2,x3) & v_do(e2) & n_demonstration(x4) & (x2 = x3) & n_man(x2) & Actor(e1,x1) & v_listen(e1) & n_child(x1))
exists e1 x1 x2.(to(e1,x2) & n_demonstration(x2) & Actor(e1,x1) & v_listen(e1) & n_human(x1))