With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Super Bowl XLVI was played at PNC Field.
text_B: The Parnall Correctional Facility is a state prison for men located in Jackson , Jackson County , Michigan , owned and operated by the Michigan Department of Corrections .. Michigan Department of Corrections. Michigan Department of Corrections. Jackson. Jackson, Michigan. The facility 's buildings were first opened in 1926 .. Present-day Parnall is one portion of the former Michigan State Prison , described as the largest walled prison in the world as late as 1981 , when it was rocked by extensive , damaging riots .. Michigan State Prison. Michigan State Prison. The prison was divided in 1988 into smaller institutions .. As of 2016 , Parnell and three other components remain open  :. the G. Robert Cotton Correctional Facility , an educational facility. G. Robert Cotton Correctional Facility. G. Robert Cotton Correctional Facility. the Charles Egeler Reception and Guidance Center , an intake and processing facility for all male state prisoners. Charles Egeler Reception and Guidance Center. Charles Egeler Reception and Guidance Center. the Cooper Street Correctional Facility , a discharge and processing facility. Cooper Street Correctional Facility. Cooper Street Correctional Facility
not_related.