You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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'.

Person1: Hey man , you wanna buy some weed ?
Person2:Some what ?
Person 1:Weed ! You know ? Pot , Ganja , Mary Jane some chronic !
Person2: Oh , umm , no thanks .
Person1: I also have blow if you prefer to do a few lines .
Person2: No , I am ok , really .
Person1: Come on man ! I even got dope and acid ! Try some !
Person2: Do you really have all of these drugs ? Where do you get them from ?
Person1: I got my connections ! Just tell me what you want and I ' ll even give you one ounce for free .
Person2: Sounds good ! Let ' s see , I want .
Person1: Yeah ?
Person2:I want you to put your hands behind your head ! You are under arrest !
Solution: informal
Why? Based on the conversation, we can see that there is a presence of exclamation which is not present in a formal discussion. Therefore this is an informal conversation

New input: Person1: I watched a very interesting documentary about plants yesterday evening . It was called unusual plants and looked at several species of plants from around the world which have unusual features .
Person2:Really ? Tell me about some of the plants they showed .
Person1: Well . There was one type of plant that catches insects and eats them .
Person2:Is that type of plant found in this country ?
Person1: No , it isn ' t . it ' s a pity , because I ' d like to see it in action .
Person2:So would i . what other unusual plants did they show ?
Person1: They showed flowers that only provide their nectar to one type of butterfly or bee . The insect has to be the exact size to get the nectar . Other insects cannot get it . Of course , when the insect molle
Person2:That ' s very specialized . So , the insects and the flowers rely on each other . If one became extinct , the other would too .
Person1: That ' s right . That ' s one reason why it ' s so important to protect every species .
Person2:I see . The plants that fascinate me most are cacti . I find it amazing that they can survive in such dry desert conditions .
Person1: According to the documentary , they have an incredible ability to find water supplies , however small , and then store them without losing much through evaporation .
Person2:That ' s why they often have long roots to find water spines instead of leaves , to reduce water loss .
Solution:
formal