One thing we might want to know, given an input to a chatbot, is if the input is a question.

We are going to use a very simple heuristic to check this: we will consider any input that has a question mark ('?') in it to be a question.

To do so, write a function called is_question.

This function should have the following inputs, outputs, and internal procedures:

Input (s) : input_string - string

Output (s) : output - boolean

Procedure (s) : if there is a '?' in input_string, set output to True

otherwise, set output to False.

return output

Following are the code to this question:

def is_question (input_string) : # defining method is_question

output = '?' in input_string # checking question mark symbol in value

return output #return value

input_string = input ('Enter any string value: ') # defining variable input_string to input value

print (is_question (input_string)) # call method and print return value

Output:

Enter any string value: what is your name?

True

Explanation:

In the given python program code, a method "is_question" is declared, which accepts an "input_string" value in its parameter.

Inside the method, an output variable is used, that search question symbol in the parameter value and return its value. In the next step, the input_string variable is declared, which uses the input method to accepts string value and passes into method calling time and print its return value.