Premise: Abraham Lincoln ( [ ˈeɪbrəhæm_ˈlIŋkən ] February 12 , 1809 -- April 15 , 1865 ) was an American politician and lawyer who served as the 16th President of the United States from March 1861 until his assassination in April 1865 .
Hypothesis: Prior to Abraham Lincoln's presidency, there had been 15 Presidents.
Label: ENTAILMENT