input: def generate_response(question: str) -> str:
      """
      Generates a response to a user query about a product or service, using a predefined dictionary of answers.
      If the question is not in the predefined dictionary, a default response is generated randomly.
      
      >>> generate_response('What is XYZ?')
      'XYZ is a company that provides XYZ services.'
      >>> generate_response('Where is XYZ located?')
      'XYZ is located in ABC city.'
      >>> generate_response('What is the weather today?')
      'Can you give me more information?'  # Note: This is a random default response
      """
output:     predefined_answers = {
          'What is XYZ?': 'XYZ is a company that provides XYZ services.',
          'Where is XYZ located?': 'XYZ is located in ABC city.'
      }
      
      default_responses = [
          'Can you give me more information?',
          'Could you clarify your question?',
          'I\'m not sure I understand. Can you rephrase?'
      ]
      
      if question in predefined_answers:
          return predefined_answers[question]
      else:
          import random
          return random.choice(default_responses)