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'.

Ex Input:
Person1: How many languages can you speak ?
Person2:Besides Chinese , I can speak English and French .
Person1: You mean you can read and write both of them ?
Person2:No , I can only carry on a simple conversation in French .
Person1: Can you read and write English well ?
Person2:I can speak the language better than I read and write .
Person1: Do you speak the language well enough to communicate with people of English-speaking countries ?
Person2:I think so . I used to be an interpreter .
Person1: Do you think your English is good enough to do desk work ?
Person2:The amount of English I know enables me to do general desk work . I believe what I know is sufficient to work in an American firm .

Ex Output:
formal

Ex Input:
Person1: Miss Gray , would you please type this report for me ?
Person2:Of course , Mr . Green .
Person1: Can you print it out before 12 o'clock ? I need it this afternoon .
Person2:No problem . I will do it immediately .
Person1: Please double space it and print it out on the laser printer so I can read it easily .
Person2:OK . Would you like this report done in a formal or informal style ?
Person1: Please type it in a formal style .
Person2:I see . Anything else ?
Person1: No , thanks .

Ex Output:
formal

Ex Input:
Person1: What ' s the first thing you do when you go to the bathroom in the morning ?
Person2:I look at myself in the mirror . Sometimes , it ' s not a pleasant sight , especially if I have been out late the late before .
Person1: Do you usually shower or take a bath ?
Person2:I usually don ' t have time for a bath in the mornings , so I just take a shower . Sometimes I need a cold shower to wake me up and sometimes I need a hot one , especially if it ' s winter and I need to warm up .
Person1: Do you shave every morning ?
Person2:I shave every workday , but I only shave at weekends if I ' m going out somewhere . If I ' m staying at home , I don ' t shave .
Person1: Do you brush your teeth twice a day as dentists recommend ?
Person2:Yes . I brush my teeth in the morning , just before I go to work . It ' s actually the last thing I do before leaving . Then I brush again before bed .
Person1: Your dentist must be proud of you !

Ex Output:
informal