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: 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

Input: Consider Input: Person1: I usually bowl with an eight ball . I like the control of a light ball . I can spin it more , so that the ball hooks .
Person2:Well . I like them a little heavier . I don't have as much control , usually bowling straight , but the extra momentum compensates for that .
Person1: Well , let's see which technique is better . I think I'll go up first ... Yes ! I hit a strike . I knocked them all down on my first bowl .
Person2:Well done . You got them all . You get 10 points and your next two bowls are added to this frame's score . I'II dry my ball off and try to knock them all down as well .
Person1: Good start . You knocked eight pins down . But you are left with a 7,10 split . Unless you can bowl a UFO-ball on this bowl , it is going to be impossible .
Person2:I certainly can try ... No ! It went straight through the wickets .

Output: informal

Input: Consider Input: Person1: John , my father isn't there at all . Are you kidding ?
Person2:Poor fellow ! What's the date today , buddy ?
Person1: It's ... OH , it's the first of April , April Fools ' Day .
Person2:You forgot all about it , didn't you ?
Output: formal