The Doctor program described in Chapter 5 combines the data model of a doctor and the operations for handling user interaction. Restructure this program according to the model/view pattern so that these areas of responsibility are assigned to separate sets of classes.The program should include a Doctor class with an interface that allows one to obtain a greeting, a signoff message, and a reply to a patient’s string.To implement the greeting, define a method named greeting for the Doctor class. To implement the signoff message, define a method named farewell for the Doctor class. Both greeting and farewell should return a string with a greeting or farewell message respectively. The reply function is defined for you, it should be added as a method for the Doctor class.The rest of the program, in a separate main program module, handles the user’s interactions with the Doctor object. Develop this program with a terminal-based user interface.Note: The program should output in the following format:Hello, how can I help you today? I am sickYou seem to think that you are sick? YesAnd what do you think about this? I am not feeling goodDid I just hear you say that you are not feeling good? YesWhy do you believe that Yes? My nose is running I would like to hear more about that. I have a headache tooYou seem to think that you have a headache too? Correct Go on. It doesn't stopDid I just hear you say that It doesn't stop? Correct Go on. That's itAnd what do you think about this? quit Have a nice day! doctor.pyDoctor.py+12 File: doctor.py3 Project 54 Conducts an interactive session of nondirective psychotherapy.5 Adds a history list of earlier patient sentences, which can6 be chosen for replies to shift the conversation to an earlier topic.789 import random1011 history = []1213 # All doctors share the same qualifiers, replacements, and hedges.1415 qualifiers = ['Why do you say that ', 'You seem to think that ',16171819 replacements = {'i': 'you', 'me': 'you', 'my': 'your',20212223 hedges = [ 'Go on.', 'I would like to hear more about that.',242526 def reply(sentence):2728293031323334353637383940'Did I just hear you say that ','Why do you believe that']'we': 'you', 'us': 'you', 'am': 'are','you': 'i', 'you': 'I'}'And what do you think about this?', 'Please continue.]"" Implements three different reply strategies."""|probability = random.randint (1, 5)if probability in (1, 2):# Just hedgeanswer = random.choice (hedges)elif probability == 3 and len(history) 3:# Go back to an earlier topicanswer = "Earlier you said that " + \changePerson(random.choice(history))else:# Transform the current inputanswer = random.choice(qualifiers) + changePerson(sentence)# Always add the current sentence to the history listhistory.append(sentence)41return answer4243 def changePerson (sentence):4445"""Replaces first person pronouns with second personpronouns, "words = sentence.split ()replyWords = []for word in words:replyWords.append(replacements.get(word, word))return " ".join(replyWords)46474849505152 def main():535455565758596061""Handles the interaction between patient and doctor."""print("Good morning, I hope you are well today.")print ("What can I do for you?")while True:sentence = input ("
")if sentence.upper() == "QUIT":print("Have a nice day!")breakprint(reply(sentence))6263 # The entry point for program execution64 if -_name__ == "__main__":656667main() +Doctor.pydoctor.py

Question

The Doctor program described in Chapter 5 combines the data model of a doctor and the operations for handling user interaction. Restructure this program according to the model/view pattern so that these areas of responsibility are assigned to separate sets of classes.The program should include a Doctor class with an interface that allows one to obtain a greeting, a signoff message, and a reply to a patient’s string.To implement the greeting, define a method named greeting for the Doctor class. To implement the signoff message, define a method named farewell for the Doctor class. Both greeting and farewell should return a string with a greeting or farewell message respectively. The reply function is defined for you, it should be added as a method for the Doctor class.The rest of the program, in a separate main program module, handles the user’s interactions with the Doctor object. Develop this program with a terminal-based user interface.Note: The program should output in the following format:Hello, how can I help you today?> I am sickYou seem to think that you are sick?> YesAnd what do you think about this?> I am not feeling goodDid I just hear you say that you are not feeling good?> YesWhy do you believe that Yes?> My nose is running I would like to hear more about that.> I have a headache tooYou seem to think that you have a headache too?> Correct Go on.> It doesn't stopDid I just hear you say that It doesn't stop?> Correct Go on.> That's itAnd what do you think about this? > quit Have a nice day! doctor.pyDoctor.py+12 File: doctor.py3 Project 54 Conducts an interactive session of nondirective psychotherapy.5 Adds a history list of earlier patient sentences, which can6 be chosen for replies to shift the conversation to an earlier topic.789 import random1011 history = []1213 # All doctors share the same qualifiers, replacements, and hedges.1415 qualifiers = ['Why do you say that ', 'You seem to think that ',16171819 replacements = {'i': 'you', 'me': 'you', 'my': 'your',20212223 hedges = [ 'Go on.', 'I would like to hear more about that.',242526 def reply(sentence):2728293031323334353637383940'Did I just hear you say that ','Why do you believe that']'we': 'you', 'us': 'you', 'am': 'are','you': 'i', 'you': 'I'}'And what do you think about this?', 'Please continue.]&#34;&#34; Implements three different reply strategies.&#34;&#34;&#34;|probability = random.randint (1, 5)if probability in (1, 2):# Just hedgeanswer = random.choice (hedges)elif probability == 3 and len(history) > 3:# Go back to an earlier topicanswer = &#34;Earlier you said that &#34; + \changePerson(random.choice(history))else:# Transform the current inputanswer = random.choice(qualifiers) + changePerson(sentence)# Always add the current sentence to the history listhistory.append(sentence)41return answer4243 def changePerson (sentence):4445&#34;&#34;&#34;Replaces first person pronouns with second personpronouns, &#34;words = sentence.split ()replyWords = []for word in words:replyWords.append(replacements.get(word, word))return &#34; &#34;.join(replyWords)46474849505152 def main():535455565758596061&#34;&#34;Handles the interaction between patient and doctor.&#34;&#34;&#34;print(&#34;Good morning, I hope you are well today.&#34;)print (&#34;What can I do for you?&#34;)while True:sentence = input (&#34;
>> &#34;)if sentence.upper() == &#34;QUIT&#34;:print(&#34;Have a nice day!&#34;)breakprint(reply(sentence))6263 # The entry point for program execution64 if -_name__ == &#34;__main__&#34;:656667main() +Doctor.pydoctor.py

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