Complex sentence: He was also a mentor, his friend Hadj El Anka, was an Algerian artist who looked up to him, they met at outings with philosophical poets and musicians where they worked together on qaçayds (poems).
Split into simpler sentences: He was also a mentor to his friend Hadj El Anka, an Algerian artist. They met at outings with philosophical poets and musicians, where they worked together on qaçayds (poems).