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: Consider Input: Person1: I'm going to Ireland this summer .
Person2:Are you going to take your children along ?
Person1: No , I'd like to go alone .
Person2:Have a nice holiday !

Output: formal

Input: Consider Input: Person1: Have you obtained any certificate of technical qualifications or license ?
Person2:Yes , I have received an Engineers Qualification Certificate and a drivers license .
Person1: How many years have you had the drivers license ?
Person2:I have two years driving experience .
Person1: That ' s good . What special skills do you have , can you tell me ?
Person2:I have experience in computer operation , proficiency in Microsoft Windows , Microsoft Word and Microsoft Excel .
Person1: What computer languages have you learned ?
Person2:Visual C + + , C and Delphi .
Person1: Have you gotten any special training in programming ?
Person2:No , but I have database programming experience and network knowledge .

Output: formal

Input: Consider Input: Person1: Honey , why are you so angry ? Can you tell me ?
Person2:You don ' t love me , Roy .
Person1: Why do you say such words ? I love you very much .
Person2:No , you used to be . But not now . You are in love with someone else . You are in love with my friend , Janet . You appreciate her very much . You think she is beautiful and fun to be with and you think I ' m dumb and uninteresting .
Person1: Susan , just one last week I went out to have a lunch with her . There is nothing for you to be jealous about . I like your company much better than Janet ' s .
Person2:I envy her and also I hate her at the same time .
Person1: Honey , you should know that I love you so deeply .
Person2:Oh , shut up , Roy .
Person1: But honey , I think you ' re terrific . There is nothing ...
Person2:Oh , SHUT UP !
Output: informal