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: I bought it . I got a watch , too . The company that sells this car has a car club .
Person2:Where you can buy lots of paraphernalia ?
Person1: Yeah , and meet other drivers of the same car !
Person2:Cool !
Person1: I know girls love this kind of car . Look , it's got a sunroof ! Imagine ... a cool , starry night ...
Person2:So , you're going to use Sarah's car to go cruising for chicks ?
Person1: No . I borrowed it to go shopping .

Ex Output:
informal

Ex Input:
Person1: When in Rome , do as the Romans do , they say .
Person2:What do the Romans do ?
Person1: They live in Rome , of course , and go to work by car or bus . But sometimes it takes too long that way because of the traffic jams , so they walk .
Person2:In other words , the Romans do what everyone else does .
Person1: Yes , but they do it differently . Everything is different .
Person2:What do you mean ?
Person1: Well , the climate's different for a start . It doesn't rain so much as it does in England . The sun shines more often .
Person2:I envy them the sun .
Person1: I know . You hate the rain , don't you ?
Person2:I certainly do .
Person1: And a Roman really Ioves life . Eye knows how to enjoy himself .
Person2:They always eat spaghetti and drink wine , don't they ?
Person1: Not always . But they like a good meal . Lots of tourists go to Rome just for the food , you know .
Person2:Really ? How much does it cost to fly to Rome ?
Person1: I don't know exactly , but it costs a lot of money .

Ex Output:
informal

Ex Input:
Person1: You look upset.What ' s wrong ?
Person2:Nothing . It's just one of those days . Everyone at the office is sick and I'm getting blamed for work not being done .
Person1: Maybe you need a vacation or something , or maybe a bonus .
Person2:I'm sick of doing other people's job and getting blamed for not doing it right .
Person1: Why don't you talk to your boss about it ? If you talk to him , he will surely understand .
Person2:I wish he could understand . You know what , if this goes on , I think I will get stick like everybody else .

Ex Output:
informal