Premise: Roger Federer . Federer turned professional in 1998 and was continuously ranked in the top 10 from October 2002 to November 2016 . He was named the Laureus World Sportsman of the Year for a record four consecutive years from 2005 to 2008 .
Hypothesis: Roger Federer was unable to hold to his award win for more than a year.
Label: CONTRADICTION