With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Vienna is in Eastern Europe.
text_B: IARC may refer to  :. Illinois Accelerator Research Center. Illinois Accelerator Research Center. Illinois Accelerator Research Center. International Aerial Robotics Competition. International Aerial Robotics Competition. International Aerial Robotics Competition. International Age Rating Coalition. International Age Rating Coalition. International Age Rating Coalition. International Agency for Research on Cancer. International Agency for Research on Cancer. International Agency for Research on Cancer. International Arctic Research Center. International Arctic Research Center. International Arctic Research Center. Israel Amateur Radio Club. Israel Amateur Radio Club. Israel Amateur Radio Club. iArc , South Korean architecture firm. iArc. iArc
not_related.