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In western Cameroon is an irregular chain of mountains , hills , and plateaus that extends from Mount Cameroon almost to Lake Chad at the northern tip of the country .
 location: Cameroon; location: Mount Cameroon; location: Lake Chad
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: Cameroon, Mount Cameroon, Lake Chad 
Answer:
 location: Cameroon; location: Mount Cameroon; location: Lake Chad