90648
Archaeological and cultural evidence leads scientists to believe people from this region migrated south , east , and west into the valleys and drainages of the Little Colorado River , the Rio Puerco , and the Rio Grande .
 location: Little Colorado River; location: Rio Puerco; location: Rio Grande
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Little Colorado River, Rio Puerco, Rio Grande 
Answer:
 location: Little Colorado River; location: Rio Puerco; location: Rio Grande