331372
Roberto Etxebarria Arruti ( 6 May 1908 – 17 February 1981 ) was a Spanish footballer who played as a midfielder .
 Roberto Etxebarria Arruti, Spanish
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Roberto Etxebarria Arruti, Spanish