With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Chris Carter has worked on films for television.
text_B: NOTOC. Year 498 BC was a year of the pre-Julian Roman calendar .. pre-Julian Roman calendar. Roman calendar. At the time , it was known as the Year of the Consulship of Siculus and Flavus -LRB- or , less frequently , year 256 Ab urbe condita -RRB- .. Ab urbe condita. Ab urbe condita. The denomination 498 BC for this year has been used since the early medieval period , when the Anno Domini calendar era became the prevalent method in Europe for naming years .. Anno Domini. Anno Domini. calendar era. calendar era
not_related.