(1) Impahla yebanga lokudla.
(2) I-valve yokukhipha okukodwa/indlela eyodwa ingengezwa.
(3) Uziphu ojwayelekile, uziphu wokudabula kalula, uthayi ungakhethwa.
(4) Kudingeka i-tear notch ukuze kube lula ukuyivula.