With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The historical play Richard III is the longest play in the First Folio of Shakespeare's plays.
text_B: In Greek mythology , Phalerus -LRB- -LSB- fəˈliːrəs -RSB- Φαληρος -RRB- was the son of Alcon from Athens .. Greek mythology. Greek mythology. Athens. Athens, Greece. He is counted among the Argonauts .. Argonauts. Argonauts. He also attended the wedding of Pirithous and Hippodamia .. Pirithous. Pirithous. Hippodamia. Hippodamia ( wife of Pirithous )
not_related.