With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Justin Timberlake appeared on a show.
text_B: Rafat Hussain اردو  : ڈاکٹر رفعت حسین is an Associate Professor of Population Health , at the Australian National University Medical School & the Centre for Research on Ageing , Health and Wellbeing -LRB- CRAHW -RRB- , Research School of Population Health , Australian National University , Canberra .. اردو. اردو. Centre. CRAHW. She was previously a Professor of Public Health and Deputy Head of the School of Rural Medicine at the University of New England in Armidale , New South Wales , Australia .. University of New England. University of New England ( Australia ). Armidale. Armidale. New South Wales. New South Wales. Australia. Australia
not_related.