With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Thirteen Reasons Why is a song.
text_B: The Black Mountain College Museum + Arts Center -LRB- BMCM+AC -RRB- is an exhibition space and resource center located at 56 Broadway in downtown Asheville , North Carolina dedicated to preserving and continuing the legacy of educational and artistic innovations of Black Mountain College -LRB- BMC -RRB- .. Black Mountain College. Black Mountain College. BMCM+AC achieves its mission through collection , conservation , and educational activities including exhibitions , publications and public programs .
not_related.