With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mariah Carey released a song.
text_B: Riojasauridae is a family of sauropod-like dinosaurs from the Upper Triassic .. sauropod. sauropod. Upper Triassic. Upper Triassic. It is known primarily from the genera Riojasaurus and Eucnemesaurus .. Riojasaurus. Riojasaurus. Eucnemesaurus. Eucnemesaurus. genera. genus. Sites containing Riojasauridae include the Lower Elliot Formation of Orange Free State , South Africa -LRB- where fossils of Eucnemesaurus have been found -RRB- , and Ischigualasto , in La Rioja Province , Argentina -LRB- where fossils of Riojasaurus have been recovered -RRB- .. Riojasaurus. Riojasaurus. Eucnemesaurus. Eucnemesaurus. Elliot Formation. Elliot Formation. Orange Free State. Orange Free State. South Africa. South Africa. Ischigualasto. Ischigualasto. La Rioja Province. La Rioja Province ( Argentina ). Argentina. Argentina
not_related.