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: How do I apply to an American university ?
Person2:You should go to the library to find some information about American universities , and write to the Admission Office . Then the Admission Office will send you application forms and other related materials . From experience , many applicants write to several universities instead of just one .
Person1: I was told that it took a lot of time and effort to apply .
Person2:That is true . I'll list for you the requirements of almost all the universities . First of all , you need official transcripts of your undergraduate work , three letters of recommendation from your professors who know your competence , and the official TOEFL ( Test of English as a Foreign Language ) score ( It's usually 550 ) . Then you need a financial guarantee , and an application fee of 25 dollars .
Person1: What's to come next ?
Person2:If they agree to enroll you , they will send you a TAP - 66 Form . With TAP - 66 , you can apply for a passport from our government , and then apply for a visa from the US Embassy in Beijing .
Person1: How long will it take to go over all the procedures ?
Person2:From 3 to 6 months if everything goes well .
Person1: Thank you . I appreciate all your help .
Person2:You are welcome . Please feel free to ask if you have any more questions .

Output: informal

Input: Consider Input: Person1: I really dislike reading academic books .
Person2:That may be so , but reading them is an important way to expand your knowledge .

Output: informal

Input: Consider Input: Person1: Are the children all grown up now , Rose ?
Person2:Oh , yes . Laura ' s the oldest . She ' s a computer programmer .
Person1: Oh , very interesting . And what about Rita ? She was such a bright child always reading .
Person2:She ' s a librarian at the public library .
Person1: Really ? And Chris ? She was a very pretty little girl .
Person2:Christy is working as a waitress at a restaurant in Paris . She ' s married to a French photographer .
Person1: Oh , how interesting . And what about Larry and Rocky ?
Person2:Larry drives a truck . He drives all over the country . We hardly ever seen him .
Person1: Really ? Where does he live now ?
Person2:Colorado .
Person1: And does Rocky drive a truck , too ?
Person2:Oh , no . Rocky is a pilot .
Person1: Really ? Where does he fly ? Does he fly to other countries ?
Person2:Yes . Mostly to England and France .
Output: informal