Complex sentence: About 2 million out of 6.3 million population in 2009, made up of black African migrants in Libya, who have reported the racism that they faced in the country, one of them telling that he is called as "slave" and "animal".
Split into simpler sentences: About 2 million out of 6.3 million population in 2009 is of black African migrants in Libya. They have reported the racism that they faced in the country, one of them telling that he is called as "slave" and "animal".