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'.

Example Input: Context: We had a lot of cookouts in front of our condo building. 
 Sentence: We usually had burgers and dogs. 
 Character: I (myself)
Example Output: None

Example Input: Context: Billy, John, and David went to the little league field. They wanted to practice before their big game tomorrow night. 
 Sentence: Billy found the maintenance man and asked him to turn on the lights. 
 Character: John
Example Output: optimistic

Example Input: Context: Mark was going to his brother's wedding. 
 Sentence: He needed a suit but he was broke. 
 Character: Mother
Example Output:
None

