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:       How are the children doing at sport ?  
 Person2:I ’ m very pleased with their performances . Timmy can cover the 100 meters in 12 seconds . That ’ s very fast for a kid his age .  
 Person1:        He ’ s not very good at the long jump though , is he ?  
 Person2:He ’ s not bad . He can jump a distance of over four meters . I think he just prefers running to jumping . Jimmy ’ s very good at the high jump . He can jump over two meters . Again , that ’ s fine for someone hi  
 Person1:        Two meters ? That means that the high jump bar is above his head ! Are any of them good at long-distance running ?  
 Person2:The longest race we run is the 1500 meters . A few of the boys and one girls can do it in less than five minutes .  
 Person1:        How are they at swimming ?  
 Person2:They ’ re ok . I ask them to swim 500 meters each day . That ’ s 20 lengths of the swimming pool . They ’ re not very fast , but that ’ s ok . I just want them to build their strength up and keep in shape .  
 Person1:        Kate is very good at diving from a height of 10 meters .  
 Person2:I ’ d be afraid to jump from that height !  
 Person1:        I think that these kinds haven ’ t learnt to be afraid yet . She started diving from a lower height , but she soon wanted to go higher .  
 Person2:It seems that they really enjoy to go faster , higher and further . 

informal