4734
Overview At the beginning of the 1928-29 American Soccer League season , the league initiated a struggle with the United States Football Association .
 organization: Soccer; organization: United States Football Association
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: Soccer; organization: United States Football Association