'Sister's' in the Bible

These were the descendants of the ancestor of Etam: Jezreel, Ishma, and Idbash; and their sister's name was Hazzelelponi.

And Machir took to wife the sister of Huppim and Shuppim, whose sister's name was Maachah;) and the name of the second was Zelophehad: and Zelophehad had daughters.