Elements of the 2 nd set
s2 = set ( ) ; NEW_LINE s2 . add ( 4 ) ; NEW_LINE s2 . add ( 5 ) ; NEW_LINE s2 . add ( 6 ) ; NEW_LINE s2 . add ( 7 ) ; NEW_LINE s2 . add ( 8 ) ; NEW_LINE s2 . add ( 9 ) ; NEW_LINE s2 . add ( 10 ) ; NEW_LINE jaccardIndex = jaccard_index ( s1 , s2 ) ; NEW_LINE