Instructions: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. You are required to assign a label 'formal' if there is an absence of emotion and a presence of questions anywhere within the conversation. If such pattern is not found assign the label 'informal'.
Input: Person1: Have you been having any problems lately ?
Person2:No , but the nurse at school says that I should have my blood pressure checked .
Person1: Do you have a history of high blood pressure ?
Person2:No , I have never been told that I have high blood pressure .
Person1: High blood pressure is called the silent killer because it hardly ever has symptoms .
Person2:How do you check for high blood pressure ?
Person1: We are going to use this cuff here , and it will give me a reading .
Person2:What do the numbers mean ?
Person1: They tell me how much your heart is working at rest and when pumping blood .
Person2:Good . That will help me know how I am doing .
Output:
formal