With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The First Folio is a collection of Shakespeare's works.
text_B: The men 's 4x400m T53-54 event at the 2008 Summer Paralympics took place at the Beijing National Stadium on 14 September .. Beijing National Stadium. Beijing National Stadium. 2008 Summer Paralympics. 2008 Summer Paralympics. There were two heats ; the teams with the four fastest times -LRB- Q -RRB- advanced to the final .. The event was won by the team representing .
not_related.