A man teaches a classroom of children.
The classroom of children is being taught by a man.
Teaches and being taught are similar meanings.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_teach(e1) & of(x2,x3) & n_child(x3) & n_classroom(x2) & n_man(x1))
exists e1 x1 x2 x3.(n_classroom(x1) & Actor(e1,x3) & n_man(x3) & Theme(e1,x1) & v_teach(e1) & of(x1,x2) & n_child(x2))