Premise: Joanne Rowling , ( [ ˈrəʊlɪŋ ] born 31 July 1965 ) , pen names J. K. Rowling and Robert Galbraith , is a British novelist , screenwriter and film producer best known as the author of the Harry Potter fantasy series .
Hypothesis: The 31st is the day J. K. Rowling was born.
Label: ENTAILMENT