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Quad-band The term quad-band describes a device that supports four frequency bands : 850 and 1900 MHz , mostly used in Canada and the United States , and the common 900 and 1800 MHz bands .
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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:
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