1924
He also played for the national teams of both the United States and Mexico , the first player to do so , although he only appeared " unofficially " for the latter , in friendly games not fully recognized by FIFA , which allowed him to make the nationality switch later .
 organization: United States; organization: Mexico; organization: FIFA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: United States; organization: Mexico; organization: FIFA