1705
In 1973 , the UFW was one of the first labor unions to oppose proposed employer sanctions that would have prohibited hiring illegal immigrants .
 organization: UFW
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: UFW 
Answer:
 organization: UFW