With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Joey Graceffa is American and he is a YouTuber.
text_B: Surftech is a surfboard manufacturing company .. surfboard. surfboard. It specializes in mass-produced expanded polystyrene boards pressed in molds designed by established surfboard shapers .. surfboard. surfboard. expanded polystyrene. expanded polystyrene
not_related.