jw ('abc','AbC')=1.0
jw ('i walked to the store','the store walked to i')=0.7553688141923436
jw ('seers','sears')=0.8666666666666667
jw ('banana','bandana')=0.9523809523809524
jw ('abc','xyz')=0.0
jw ('1234567890qwertyuiopasdfghjklzxcvbnm','mnbvcxzlkjhgfdsapoiuytrewq0987654321')=0.5272904483430799
jw ('#faceroll:j4565j6eekty;fyuolkidsujkr79tp[8yiusyweryhjrn7ktgm9k,u[pk7jf6trhvgag5vhbdtnfymghu,','#faceroll:ezbrytnmugof7ihdgsyftwacvegybrnftiygihdugs5ya4tsyrdu6htifj7yif')=0.6512358338650381