With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Rajesh Khanna was a communist.
text_B: The Crostolo is a stream -LRB- a `` torrente '' -RRB- in the Province of Reggio Emilia , Emilia-Romagna Region , Italy .. torrente. Torrent ( stream ). Province of Reggio Emilia. Province of Reggio Emilia. Emilia-Romagna. Emilia-Romagna. Italy. Italy. It starts in the Apennines of the province of Reggio Emilia and flows northwards , passing through the provincial capital , Reggio nell 'Em ilia until it empties into the River Po near Guastalla .. Apennines. Apennine Mountains. province of Reggio Emilia. province of Reggio Emilia. River Po. River Po. Guastalla. Guastalla. Category  : Po basin. Category  : Rivers of Italy. Italy. Italy. Category  : Tributaries of the Po -LRB- river -RRB-. Category  : Rivers of the Province of Reggio Emilia. Province of Reggio Emilia. Province of Reggio Emilia
not_related.