With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: 50 Cent was ranked ahead of Eminem and Nelly for best rapper by Billboard.
text_B: The following is an episode list for the MTV reality television series Rob Dyrdek 's Fantasy Factory .. MTV. MTV. reality television. reality television. Rob Dyrdek. Rob Dyrdek. The show follows the lives of professional skateboarder Rob Dyrdek , his cousin Drama , and the staff of The Fantasy Factory .. Rob Dyrdek. Rob Dyrdek. Drama. Christopher Pfaff
not_related.