What does 1 Chronicles 1:32 mean?

Abraham also had sons through Keturah, his concubine: Zimran, Jokshan, Medan, Midian, Ishbak, and Shuah. Jokshan's sons were Sheba and Dedan. 1 Chronicles 1:32 - Modern Text Bible

(This verse introduces Abraham's other sons by Keturah, showing the broader family tree.)