With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Selena Gomez acted on the show Barney & Friends.
text_B: Pascua-Lama is an open pit mining project of gold , silver , copper and other minerals .. open pit. open pit. mining. mining. gold. gold. silver. silver. copper. copper. Pascua Lama is located in the Andes mountains , in the southern reaches of Atacama Desert , straddling the border between Chile and Argentina at an altitude of over 4,500 metres .. Andes mountains. Andes. Atacama Desert. Atacama Desert. Chile. Chile. Argentina. Argentina. Toronto-based Barrick Gold , the world 's largest gold mining company , is developing the project .. mining. mining. gold. gold. Barrick Gold. Barrick Gold. Due to its proximity to glaciers , Pascua-Lama has caused controversy and public protest in Chile , including demonstrations and petitions presented to the Chilean government .. Chile. Chile. Chile has not approved the project .. Chile. Chile. Pascua-Lama contains estimated deposits of 17 million ounces of gold and 635 million ounces of silver , with 75 percent of the deposits in Chile and 25 percent in Argentina .. gold. gold. silver. silver. Chile. Chile. Argentina. Argentina
not_related.