With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Star Trek had four spin-off television series.
text_B: Saint Colman mac Cathbaid is a sixth-century Irish saint who was bishop of Kilroot -LRB- Co. .. Kilroot. Kilroot. Antrim -RRB- , a minor see which was afterwards incorporated in the Diocese of Connor .. He may have given his name to Kilmackevat -LRB- Co. .. Kilmackevat. Kilmackevat. Antrim -RRB- .. He was a contemporary of St. Ailbe , and his feast has been kept on 16 October .. St. Ailbe. Ailbe
not_related.