With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Linkin Park released the prisoner Hybrid Theory.
text_B: Tourism in Haiti is an industry that has generated just under a million arrivals in 2012 , and is one of the main sources of revenue for the island .. With its favorable climate , second longest coastline of beaches and most mountainous ranges in the Caribbean , waterfalls , underground caves , colonial architecture and distinct cultural history , Haiti has had its history as an attractive destination for tourists .. Caribbean. Caribbean. However , unstable governments have long contested its history and the country 's economic development throughout the 20th century .
not_related.