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We 're not calling for any frost until after the weekend when it starts to cool off in northwestern Alberta after the weekend probably Monday or Tuesday , " meteorologist Gerald Machnee told Reuters .
 location: Alberta; organization: Reuters; person: Gerald Machnee
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
 Entities: Alberta, Reuters, Gerald Machnee 
Answer:
 location: Alberta; organization: Reuters; person: Gerald Machnee