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: Hi , Bob , this is Mary .
Person2:Hello , Mary , where do you work ?
Person1: I work for an Internet company .
Person2:Is the pay good ?

Output: formal

Input: Consider Input: Person1: Did you hear what happened to Mike in Accounts ?
Person2:No . What ?
Person1: He got arrested on Friday night and spent the night in jail .
Person2:No . Really , what happened ?
Person1: Well , it was all a big mistake , actually . He got home on Friday night really late , and apparently he'd been out drinking with some clients , so he was really drunk .
Person2:Was he out with the guys from the bank ?
Person1: Yes , I think so .
Person2:Oh , yeah , they always get really drunk .
Person1: Well , anyway , he'd somehow lost his wallet and his house keys , so he couldn't get in . He lives alone , you know .
Person2:Oh , really . I thought he lived with his wife .
Person1: No , she left him last year .
Person2:Oh , really ? Do you know why ?
Person1: Hang on , let me finish telling you what happened . Where was I ?
Person2:He lost his wallet and keys .
Person1: Oh yes , well , he tried to climb in through the bathroom window , but apparently he slipped and broke the glass with his foot . The neighbors heard him and thought a robbery was in progress , so they called the police .
Person2:Oh , no .
Person1: Yes . So when the cops arrived , they didn't believe his story
Person2:So then what happened ?
Person1: Well , when he sobered up , he called someone from work to come and bail him out .
Person2:Well , that's a bit of a tricky situation .
Person1: Yes , I know .

Output: informal

Input: Consider Input: Person1: what kinds of tv programmes do you enjoy watching ?
Person2:I like current affairs programmes and documentaries , especially wildlife ones . How about you ?
Person1: I like those kinds of programmes too . They ' re very informative . I think that many people underrate the education value of tv .
Person2:I agree . People often criticize tv for showing too much sex and violence .
Person1: yeah . And that ' s so funny because most people prefer watching sex and violence to watching something more educational !
Person2:right . You can ' t blame the tv stations for showing popular kinds of programmes . They need to make money from advertisements shown during and between programmes .
Person1: in my country , there ' s a time limit on the advertisements that can be shown . I think it ' s about six minutes per hour .
Person2:that ' s great idea . But don ' t the tv station lose a lot of money because of that ?
Person1: no . they don ' t . they simply charge higher prices at peak times . Is there no limit on the amount of advertisements that can be shown on tv in your country ?
Person2:not as far as I know . We have so many advertisements . the interruptions are unbearable sometimes ! That ' s one reason that many people prefer satellite or cable tv , where you pay a fixed amount each mo
Person1: some people have satellite and cable tv in my country , but people don ' t seem to keen to pay for their tv programmes . Besides , the terrestrial channels offer a good range of programmes .
Person2:well , there ' s a wildlife documentary on tv in a few minutes . Shall we ?
Output: informal