With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Martian is a 2015 American science fiction film documenting a Mars expedition.
text_B: RVV may stand for  :. Reeve Aleutian Airways , a former American airline -LRB- ICAO code -RRB-. Reeve Aleutian Airways. Reeve Aleutian Airways. Russell Viper Venom .. See Dilute Russell 's viper venom time ,. Raad van Vlaanderen -LRB- World War I -RRB- - the council of Flanders. Tour of Flanders , Tour of Flanders -LRB- a cycling classic -RRB-. Tour of Flanders. Tour of Flanders. Raivavae Airport -LRB- IATA code RVV -RRB-. Raivavae. Raivavae. IATA. IATA
not_related.