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George Alexander Dobson ( 1873 – 8 June 1917 ) was a Welsh rugby union forward who played club rugby for Cardiff and international rugby for Wales .
 Dobson, Welsh, Cardiff, Wales
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Dobson, Welsh, Cardiff, Wales