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Due to its modest elevation of and its gradual approaches , the pass was recommended by Sir Sandford Fleming as a route across the Rocky Mountains for the planned Canadian Pacific Railway .
 Sandford Fleming, Rocky Mountains, Canadian Pacific Railway
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:
 Sandford Fleming, Rocky Mountains, Canadian Pacific Railway