51909
He also scored twice in a 3 – 1 victory over world champions Diego Maradona at Wembley , a game which saw the first appearance in England of Ron Greenwood .
 Diego Maradona, Wembley, England, Ron Greenwood
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Diego Maradona, Wembley, England, Ron Greenwood