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: You look very professional in the suit .
Person2:The company regulates that men should wear a suit and tie in business meeting . Company policy is not negotiable .
Person1: I appreciate it . It is related to company image .

Output: informal

Input: Consider Input: Person1: Did you hear the news ? Two of our major suppliers , Murphy Music and U-Tunes are merging ! If they are conglomerated into one company into one company , it would have some serious affects on our market strategy .
Person2:Are you sure ? Who told you that ? I highly doubt that they would take the step to merge into one company ... They're supposed to be bitter enemies , the strictest of competitors.It must be a rumor.It can't be true .
Person1: I read it myself on the financial page.They ' re really going to join together . U-Tunes was bought out by Murphy's , they will take over the company as of next month .
Person2:The competition must have been too stiff for U-Tunes.Otherwise why would they allow themselves to be taken over by their sworn enemy ?
Person1: I guess they must have figured it would be easier to merge than to keep up the cutthroat competition.If you can't beat'em , join'em .

Output: informal

Input: Consider Input: Person1: What do you think this flat ?
Person2:It's not really all that good.The bedroom is a little small for us .
Person1: Small ? But it should be enough for our needs , I think .
Person2:But there's no hot water after 10 at night.Sometimes I like to have a hot shower before bed , especially in the winter , it feels good .
Person1: That's true , but I love the living room , it's huge and filled with sunshine .
Person2:True , and I like the kitchen.It ' s new and well equipped .
Person1: It has a great balcony with an incredible view of the park .
Person2:You are right.The view is spectacular.But that bedroom is so small.We ' d never be able to fit all of our stuff in there .
Person1: May be we could get some new furniture , better stuff .
Person2:I haven't thought of that .
Output: informal