silsiladda sii daayo alaabta gudbinta daahan line-soo-saarka, oo ay ku jiraan buufin nooca pre-daawaynta ka hor, foornada qoyaan qalajinta, qolka rinjiga, qolka siman, foornada qalajiyo rinjiga iyo alaabta silsilad gudbinta alaabta, buufin nooca pre-daawaynta, foornada qoyaan qalajinta, qolka rinjiga , qolka siman iyo foornada qalajinta rinjiga iyada oo loo marayo qalabka gudbinta silsiladda sii daayo ee ku xiran;Qaybta gudbinta ee qalabka gudbinta silsilada raasamaalku waxa ay dhex martaa qalabka lagu buufiyo oo ah nooca daawaynta ka hor, foornada biyaha lagu qalajiyo, qolka rinjiga, qolka siman iyo foornada rinji qalajinta gudaha.