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: Consider Input: Person1: Mom , why do chinese people like to touch my head ? sometimes they even touch my cheeks .
Person2:That is a part of chinese culture , if they think you are a lovely child , they touch your head and say , how cute you are .
Person1: But i donor like it , not a bit , i am not a pet , i am a girl .
Person2:Well , you get used to it , different countries have different manners .
Person1: But i do not like anyone touch my head .
Person2:They are just been in friendly , when you are in Roman , do as the Romans do , that means you need to adapt to your enviroment .
Person1: What if everybody in the wheres goes crazy ?
Person2:Then you might need to pretend to be a little crazy .
Person1: Does this mean that if i might want those new European bitches , i am supposed to wonder run reget ?
Person2:Do you think it is a ~ got give your brain , use it if you really cannot accept it people touch your head , keep distance from them , why not just wear your big flyby hat and ~ is anyone get close to you .
Person1: That is my work , i will try it .

Output: formal

Input: Consider Input: Person1: Hello , Mrs Turnbull . How are you ?
Person2:Fine , thanks . How's your boy , Jack ?
Person1: He's a bit tired . You know , he goes to school at eight o'clock every morning.He doesn't get home till after four . then he does his homework after tea . It often takes him a couple of hours to finish
Person2:Poor boy . They work hard at school nowadays , don't they ? Does he like it ?
Person1: School , you mean ? Yes , he does . He likes his teachers , and that always makes difference .
Person2:Yes , it does . Does he go to school by bus ?
Person1: No , he walks . He likes walking . He meets some of his friends at the corner another go together .
Person2:What does he do when it rains ?
Person1: My husband takes him in the car . He passes the school on the way to the office .

Output: formal

Input: Consider Input: Person1: I just had a terrible week .
Person2:What a shame !
Person1: I fell down and hurt my arm .
Person2:That's too bad .
Person1: Then my son drove into a tree
Person2:I'm sorry to hear that .
Person1: The dog bit the delivery boy .
Person2:What a pity !
Person1: And a storm blew our roof away .
Person2:Ho , no !
Output: informal