73032
Here he mentions superintending the casting of a great bell , for which there was difficulty in getting fuel for the furnace , making it necessary to fell great trees in the Rímac River valley .
 Rímac River
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Rímac River