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: Did you watch the Premiership last night ?
Person2:Yes , I watched United play Chelsea . What a fierce battle ! allay were engaged in intensive pressing and tackling in midfield . Well , it was not like a normal English League match .
Person1: No , it wasn't . Rather , it looked like a Bundesliga match , where physical contact is so frequent . English League teams are apt to pass the midfield quickly with long passes . It seems to me English soccer players are very gentlemanly . As Diego Maradona spoke teasingly , they often knew only chasing hard after the ball , but forgot to steal it .
Person2:Haha . That's probably why slide tackle and fouls are less common , and offsides more frequent in English League matches than those on the Continent . And the ball is often kept flying overhead , drawing beautiful curves in the sky . Such games are quite pleasing to the eye .
Person1: Which team do you back then ?
Person2:I'm a firm United supporter . I like their playing style . The Reds always have several excellent wing-backs , Like Riggs , Peckham and Gary Neville . They often make wonderful crosses when they assist in attacking .
Person1: But the Reds keep a weak midfield . I think Juventas of Italian Series A have always maintained a very formidable midfield . It is the main source of its strength .
A:
formal