38492
The Sierra Madre Occidental mountain range , an extension of the Rocky Mountains , dominates the state 's terrain and is home to the state 's greatest attraction , Las Barrancas del Cobre , or Copper Canyon , a canyon system larger and deeper than the Grand Canyon .
 location: del
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: del 
Answer:
 location: del