input question: On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Best app ever works perfectly without any crashing"???
output answer: 5

On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "I like it"
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Answer: 3

Q: On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Very nice and simple app :)"
A: 4

Question: On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "The only book reader app I know and trust"
Answer: 5

[Q]: On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "The best one I use this apps since my first android. Great work. Thanks"
****
[A]: 5

Problem: Given the question: On a scale of 1-5 (with 1 being least favorable and 5 being most favorable), how would you rate this review? "Good app"
++++++++++++++++++++++++++++++++
The answer is:
4