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: He has lots of hobbies .
Person2:And he ' s always busy with his pictures and roses .
Person1: He ' s won a dozen prizes for his pictures and roses .
Person2:But as for his business in the city ...
Person1: He lets his cousins look after his business .
Person2:He sounds more like an artist than a businessman .
Output:
informal