A parent is brushing their child's teeth.
The child is drinking a box of juice.
One can be either drinking or getting one's teeth brushed.
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_brush(e1) & n_tooth(x3) & of(x3,x2) & n_child(x2) & of(x2,x1) & n_thing(x1) & n_parent(x1))
exists e1 x1 x2 x3.(n_child(x1) & Theme(e1,x2) & Actor(e1,x1) & v_drink(e1) & of(x2,x3) & n_juice(x3) & n_box(x2))