Definition: 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: Person1: Are there any interesting stories in the newspaper today ?
Person2:There are a few stories about natural disasters . There is a massive forest fire in Australia . It covers several square kilometers of land has destroyed many more square kilometers .
Person1: Was it caused accidentally or naturally ? Sometimes it gets so hot that fires begin naturally in Australia and Africa .
Person2:Nobody knows at the moment , but it has been very hot there recently . The drought in Africa is causing starvation . Millions of people have migrated to try and find food .
Person1: What is the international community doing to help ?
Person2:The European union has sent several plants with relief supplies . Several countries have sent soldiers to distribute food and medical supplies . Refugee camps have been set up across the region .
Person1: How many countries have been affected ?
Person2:Six have been seriously affected , but the refugees are also migrating to several surrounding countries .
Person1: I saw on the tv yesterday that there has been another earthquake in Iran .
Person2:Yes . There have been a few there recently . They say that this one was not a big quake . The Iranians are dealing with it on their own . They have purchased some special equipment to find people buried under rubble .
Person1: Does the newspaper say anything about casualties ?
Person2:So far , less than 20 people have died , but over 100 are in hospital .
Output:
formal