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'.

Example input: Person1:      Hey man , you wanna buy some weed ?  
 Person2:Some what ?  
 Person 1:Weed ! You know ? Pot , Ganja , Mary Jane some chronic !  
 Person2: Oh , umm , no thanks . 
 Person1:      I also have blow if you prefer to do a few lines . 
 Person2: No , I am ok , really . 
 Person1:      Come on man ! I even got dope and acid ! Try some ! 
 Person2: Do you really have all of these drugs ? Where do you get them from ? 
 Person1:      I got my connections ! Just tell me what you want and I ’ ll even give you one ounce for free . 
 Person2: Sounds good ! Let ’ s see , I want . 
 Person1:      Yeah ?  
 Person2:I want you to put your hands behind your head ! You are under arrest ! 
Example output: informal
Example explanation: Based on the conversation, we can see that there is a presence of exclamation which is not present in a formal discussion. Therefore this is an informal conversation
Q:  Person1:       May , we are fools to hang out at noon . It's dying hot today . My skin is too weak to be exposed under the summer sun . 
 Person2:Do you have any sunscreen lotion ? 
 Person1:        You know , honey , I used it all on the way over . 
 Person2:I think I'm getting a heart stroke . 
 Person1:        The heat is driving crazy and I hate my new hat . 
 Person2:Why ? It's brand new , and it's perfect on you . 
 Person1:        But I bought it to get rid of the heat . Now it does nothing but burning my head . 
 Person2:Beauty costs , honey . 
 Person1:        Laugh all you want , whatever . We need to get out of the heat . 
 Person2:Walking under the sun is certainly not the way . 
 Person1:        Give me a break . It's not funny . 
 Person2:Right . Sorry . Anyway , the radio said that it'll rain later today . 
 Person1:        Hope so ! Good thing is that autumn is just around the corner . 
A:
informal