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'.

Example Input: Person1: Ok , I ' Ve got an up-to-day map . Let ' s check the route from here to the airport .
Person2:Where are we ? Oh , here we are . So we drive to the A120 and turn left .
Person1: No , we turn right . Remember that we are coming from this direction .
Person2:Oh yes ! Sorry ! Then we drive to the M11 motorway .
Person1: How far is that ?
Person2:It ' s only seven miles . We turn left to join the motorway and drive south .
Person1: According to the map , we get off the M11 at the second junction and join the M25 . That ' s the motorway that goes around the edge of London .
Person2:That ' s another 15 miles , so that ' s 22 miles total so far .
Person1: Then we drive west on the M25 . we must be careful to turn in the right direction !
Person2:Then we drive on the M25 . it turns south . When we reach exit 15 , we turn left and go west along the M4 .
Person1: Then we take the first Heathrow Airport . What ' s the total distance ?
Person2:The journey around the M25 is 33 miles and then 3 extra miles to get to the airport . So how many miles is that together ?
Person1: 22 miles to the M25 , 33 miles on the M25 , and 3 after that . That ' s a total of 58 miles , isn ' t it ?
Person2:It shouldn ' t take us very long to cover that distance . Remember that we can go quite fast on the motor way .
Person1: We can only go fast on the motor ways if there isn ' t much traffic . I think we should allow ourselves plenty of time to get there . Being early is much better than being late .
Example Output: informal

Example Input: Person1: Thank you for showing me your offices , Mr . Becker . I can see why Washington bureaucrats enjoy their jobs .
Person2:Why do you say that ?
Person1: The city is beautiful , the off ... , the offices are modern and comfortable , and the work is so interesting .
Person2:Many people work for the federal government their entire adult lives . Government service can be a rewarding and secure career .
Person1: Do you mean financially rewarding ?
Person2:Well , many positions pay salaries that are comparable to those in private industries .
Person1: I ' Ve always thought that most bureaucrats are lazy .
Person2:Sometimes that ' s true , but not usually . Most feds are honest , hard-working professionals . It ' s hard to keep highly trained people , so the pay and working conditions have to be attractive .
Person1: How much do you make ?
Person2:I ' m a GS - 15 . That ' s high on the scale of workers , but even a GS - 1 is paid a living wage .
Example Output: informal

Example Input: Person1: Hello ! I'm Penny , I moved here just now .
Person2:Oh , Penny , I'm Leonard , glad to meet you .
Person1: Nice to meet you , too . I thought I should come and say hello to you . I haven't known anybody .
Person2:It is hard to get used to a new place , isn't it ?
Person1: Yes . Would you like to come here later to have a coffee ? Bring all your family .
Person2:We'd like to . Can you tell me when we go ?
Person1: About 4 .
Person2:OK . Do you want us to bring something ?
Person1: No , just come here .
Person2:OK , see you later .
Person1: Bye .
Example Output:
informal