With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Sons of Anarchy premiered in 2008.
text_B: The archaeological site of Delphi is an incredible source of information on Greek epigraphy .. Delphi. Delphi. epigraphy. epigraphy. The most numerous single category of inscriptions are the manumission inscriptions , which reach roughly a number of 1300 .
not_related.