input: Please answer the following: On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Niranjan kumar Hi"
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output: 2

input: Please answer the following: On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Lately doesn't register most calls Other than being slow sporadically showing calls (even from address book numbers) and the painful contact lookup process it's great. The answer to speakerphone option is great!"
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output: 2

input: Please answer the following: On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Who invented this crap? Had to factory reset my phone!!"
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output: 1

input: Please answer the following: On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "I managed Well"
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output:
5