With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Cancer can be counteracted by maintaining a healthy weight.
text_B: Emmett O ' Brien Technical High School , or O ' Brien Tech , is a technical high school located in Ansonia , Connecticut .. technical. vocational school. high school. high school. It is in the Connecticut Technical High School System .. Connecticut Technical High School System. Connecticut Technical High School System. O ' Brien Tech receives students from many nearby towns .
not_related.