With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Season 15 of Family Guy was premiered in the United States.
text_B: The Rodalb , also called the Rodalbe , is a stream , just under 26 km long , in West Palatinate in the German state of Rhineland-Palatinate .. Rhineland-Palatinate. Rhineland-Palatinate. West Palatinate. West Palatinate. It is an orographically left tributary of the Schwarzbach .. Schwarzbach. Schwarzbach ( Blies )
not_related.