With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The naming of Pink Floyd for the band is credit to Syd Barrett.
text_B: DCAS may be  :. Defense Contract Administrative Service. Defense Contract Administrative Service. Defense Contract Administrative Service. Deputy Chief of the Air Staff. Deputy Chief of the Air Staff. Deputy Chief of the Air Staff. Derive computer algebra system. Derive computer algebra system. Derive computer algebra system. Double compare-and-swap. Double compare-and-swap. Double compare-and-swap. Downloadable Conditional Access System. Downloadable Conditional Access System. Downloadable Conditional Access System. Dynamic Computer Algebra System. Dynamic Computer Algebra System. Dynamic Computer Algebra System. Devon and Cornwall Archery Society. Devon and Cornwall Archery Society. Devon and Cornwall Archery Society. Department of Citywide Administrative Services , New York City. Department of Citywide Administrative Services. New York City Department of Citywide Administrative Services. DCAS Testing. DCAS Testing. DCAS Testing
not_related.