With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: A loss of supply can require a prime minister to resign.
text_B: The Queen Elizabeth Stakes , raced as the Queen 's Cup -LRB- 2015 -RRB- is a registered Victoria Racing Club Group 3 Thoroughbred horse race for horses aged three years old and over , under open handicap conditions , over a distance of 2600 metres at Flemington Racecourse , Melbourne , Australia on the last day of the VRC Spring Carnival in early November .. Flemington Racecourse. Flemington Racecourse. Melbourne. Melbourne. Australia. Australia. Thoroughbred. Thoroughbred. Victoria Racing Club. Victoria Racing Club. Group 3. Group races. horse race. horse race. handicap. handicapping. Total prize money is A$ 300,000
not_related.