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A canyon up to deep was carved by the mudflows just below the falls and all plant life lining the creek below the falls was washed away and replaced by dead vegetation .
 None
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:  
Answer:
 None