With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Melbourne possesses a diverse array of transport.
text_B: Ernst Friedrich Diez or Dietz -LRB- 17 March 1805 -- December 1892 -RRB- was a German lyric tenor who sang leading roles in the opera houses of Germany and Austria .. lyric tenor. lyric tenor. He is most closely associated with the Munich Hofoper -LRB- now known as the Bavarian State Opera -RRB- where he was a member of the company from 1837 to 1849 .. Bavarian State Opera. Bavarian State Opera
not_related.