Detailed Instructions: In this task, you're given a context, a sentence,  and a character. The sentence describes an action or job of the given character. Also, the context provides more information about the sentence or the character. Your task is to return one of the emotions which are expressed by the Character in the given sentence. For that you can use the Context; however, Context is not provided in all the inputs. Also, in some inputs, there can be zero emotion; for that return 'None'.
Problem:Context: I decided to go on a trip to Key West last winter. I made reservations for the trip and a week later flew to Miami. The weather was beautiful in the keys and I went snorkeling. I also spent some time tanning out by the hotel pool. 
 Sentence: I was sad to leave Key West but I had to go back home. 
 Character: I (myself)
Solution:
unhappy