Definition: 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:       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 . 

formal