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Commercially produced and sold E-books are usually intended to be read on dedicated e-book reader s. However , almost any sophisticated electronic device that features a controllable viewing screen , including computers , many mobile phone s , and nearly all smartphones , can also be used to read e-books .
 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