Yakov's Family Line

Yoseph, a young man of 17, was tending the flocks with his brothers. He brought their father a bad report about them. That doesn't seem like the best idea on his part, right? I was noigto ask you, though, it only mentions bilha and zipa here. What about the sons of laa or rahel ye an? Honest, i don't hav a good answer for that.