then the teacher's kids teach other kids
then those kids teach other kids
then those kids teach other kids
then those kids teach other kids
then those kids teach other kids
then those kids teach other kids
then those kids teach other kids
then those kids teach other kids
then those kids teach other kids
then those kids teach other kids
then those kids teach other kids
then those kids teach other kids
then those kids teach other kids
then those kids teach other kids
then those kids teach other kids