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The Club had waned from the halcyon early 1950 days of Billy Steel and co. , but at the start of the next decade , as manager Bob Shankly introduced youngsters Alex Hamilton , Ian Ure , Andy Penman , Alan Gilzean , and Hugh Robertson and brought in experience in the shape of Bobby Seith , Bobby Wishart and Gordon Smith , the Dark Blues became genuine contenders for the major prizes .
 Bobby, Bobby
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Bobby, Bobby