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He returned to the Steelers in 1993 and joined the expansion Carolina Panthers in 1995 before retiring after the 1995 season .
 organization: Steelers; organization: Carolina Panthers
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: Steelers, Carolina Panthers 
Answer:
 organization: Steelers; organization: Carolina Panthers