Premise: Maria Sharapova . She has been ranked world No. 1 in singles by the WTA on five separate occasions , for a total of 21 weeks . Sharapova became the world No. 1 for the first time on August 22 , 2005 , at the age of 18 , and last held the ranking for the fifth time for four weeks from June 11 , 2012 , to July 8 , 2012 .
Hypothesis: Maria Sharapova was the world No. 1 for four weeks in 2015.
Label: NEUTRAL