With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The main cast returned for Gilmore Girls: A Year in the Life, the revival of the series which came out in 2016.
text_B: The Arrowhead League is a high school athletic league that is part of the CIF Southern Section .. CIF Southern Section. CIF Southern Section. Its member schools are located around Riverside , and include five independent schools , one public school , and the United States Bureau of Indian Education operated Sherman Indian High School .. Riverside. Riverside, California. Bureau of Indian Education. Bureau of Indian Education
not_related.