premise: The Hindu Kush refers only to a strain of marijuana.
hypothesis: The Hindu Kush ( [ kʊʃ , _ kuːʃ ] Pashto , Persian and [ ) , also known in Ancient Greek as the Caucasus Indicus or Paropamisadae , is an 800 km mountain range that stretches near the Afghan-Pakistan border , from central Afghanistan to northern Pakistan . Kush refers to a subset of strains of Cannabis indica .