/**
* Create two sets Nature and Devine
*
* - Nature's words: "all", "nature", "is", "but", "art", "unknown", "to", "thee"
*
* - Devine's words: "to", "err", "is", "human", "to", "forgive", "devine"
*
* Your challenge is print out the two sets and determine the union and the
* intersection of the two sets
*
* PS:
* See the image in the description folder for more details
*/