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'.

Q: Person1: Hey , Jim . I didn ' t know you biked to work .
Person2:Yeah , it helps keep me fit and helps the environment , too .
Person1: One less car on the road means less pollution .
Person2:Right . Since my work is near a park , it ' s a really nice ride , too .
Person1: How far is it ?
Person2:Oh , about 10 miles . It takes me about an hour .
Person1: That doesn ' t sound too bad . I wish I could do it , but I work in the city . So I take the train .
Person2:You ' re doing your part for the environment by using public transportation , too .
Person1: True . Well , see you tomorrow .
Person2:See you .

A: informal
****
Q: Person1: Since China was open to the outside world , its trade forms have become much more flexible . One of these commonly used forms is co-production . Would you please do a bit explanation of it , Mr . Walker ?
Person2:Well , under this arrangement two parties cooperate to manufacture a product or a category of products , for example , machine tools for export . Each party produces and supplies a part of the components and parts ; one party is a Chinese enterprise , the other , an overseas firm . Most probably , the foreign counterpart contributes technology and equipment , and sometimes , parts and components , while the Chinese enterprises factory building , labor and other resources to the cooperative production . They join hands and fulfill orders together by an agreement or a contract .
Person1: I suppose that the assembling of these components and parts , particularly the marketing of the finished products should take place in China .
Person2:Not necessarily . It depends on the contract stipulations . They may be marketed in the foreign country where the other party is located , or even in a third country .
Person1: I think the principle of co-production is to expand export trade . It's a reciprocal business , isn't it ?
Person2:Yes , you are right . Either party is not well-equipped to produce the final products single-handedly , but they can enter into an agreement . In such case , each side contributes different resources to make the manufacture of a certain product or a category of products possible .

A: formal
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Q: Person1: Can you believe that Obama is our new President ?
Person2:I ' m so happy about that .
Person1: Did you vote for him ?
Person2:I sure did . How about you ?
Person1: I voted for him .
Person2:I have complete confidence in our new President .
Person1: Is that right ?
Person2:I know he will help change America .
Person1: I hope so , because America needs a change .
Person2:I feel like things are already changing , because he was elected .
Person1: I agree with you completely .
Person2:I ' m not worried about our country now that it ' s in his hands .

A:
informal
****