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By 1876 , rancher and businessman John Tunstall had partnered with Alexander McSween to form a rival business , which developed into tensions between the Murphy-Dolan and Tunstall-McSween factions .
 John Tunstall, Alexander McSween
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 John Tunstall, Alexander McSween