original: oen siew yock took over as principal in 2005 when ong was transferred to nan chiau high school .
simplifications: oen siew yock took over as principal in 2005 when ong was transferred to nan chiau high school . . oen siew yock took over as principal in 2005 when ong was sent to nan chiau high school . 1 . oen siew yock became principal in 2005 when ong was moved to nan chiau high school . when ong was transferred to nan chiau high school in 2005 oen siew yock took over as principal . oen siew yock became the principal when ong moved to nan chiau high school in 2005 . when ong was transferred to nan chiau high school , oen siew yock took over as principal in 2005 . oen siew yock took over as principal in 2005 when ong was moved to nan chiau high school . oen siew yock took over as principal in 2005 when ong was moved -lrb- from one place to another -rrb- to nan chiau high school .