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The African-American vote became even more solidly Democratic when Democratic presidents John F. Kennedy and Lyndon B. Johnson pushed for civil rights legislation during the 1960 s .
 person: John F. Kennedy; person: Lyndon B. Johnson
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:
 person: John F. Kennedy; person: Lyndon B. Johnson