Language= python

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Write a function happiness (text) that uses the Dodds et al (1) happiness dictionary to rate the happiness of a piece of english text input as a single string). The happiness score is the average score over all words in the text that appear in the dictionary. For simplicity, you may neglect the words with special characters in the dictionary. Test cases: s1 = "Mary had a little lamb." 82 = "Mary had a little lamb. Mary had a little lamb!" s3 = "A quick brown fox jumps over a lazy dog." happiness (81) and happiness (82) should return 5.368; happiness (83) should return 5.275. Write a function happiness (text) that uses the Dodds et al (1) happiness dictionary to rate the happiness of a piece of english text input as a single string). The happiness score is the average score over all words in the text that appear in the dictionary. For simplicity, you may neglect the words with special characters in the dictionary. Test cases: s1 = "Mary had a little lamb." 82 = "Mary had a little lamb. Mary had a little lamb!" s3 = "A quick brown fox jumps over a lazy dog." happiness (81) and happiness (82) should return 5.368; happiness (83) should return 5.275