Premise: Lyndon Baines Johnson ( [ ˈlɪndən_ˈbeɪnz_ˈdʒɒnsən ] August 27 , 1908January 22 , 1973 ) , often referred to as LBJ , was an American politician who served as the 36th President of the United States from 1963 to 1969 , assuming the office after serving as the 37th Vice President of the United States under President John F. Kennedy from 1961 to 1963 . After he left office in January 1969 , Johnson returned to his Texas ranch , where he died of a heart attack at age 64 on January 22 , 1973 .
Hypothesis: Lyndon B. Johnson signed a piece of federal legislation into law in 1978.
Label: CONTRADICTION