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This created a marketing problem , since the full-size cars had substantially less shoulder room than their predecessors , and were narrower and barely longer than GM 's mid-size cars .
 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