Definition: You are given a conversation between two people.'Person1:' and 'Person2:' are used to separate their respective dialogues. You have to classify if there exist more than 2 unique emotions in conversation. If there are more than 2 unique emotions present in the conversation, the output should be classified as '1' else it should be '0'
Input: Person1:     Hi Amy , you look very happy . 
Person2: Yes , I'm very pleased . I've just got two tickets to see the Olympic opening ceremony . 
Person1:     Wow . You must be very excited . 
Person2: I certainly am . I would have been very disappointed if I hadn ’ t got them . 
Person1:     Shall we go to a restaurant to celebrate ? 
Person2: What a good idea . I'm quite hungry . 
Person1:     Me too . I feel very thirsty as well . 
Person2: Let ’ s go then . 
Output:
0