Definition: 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 write the character's motivation by doing a specific job, which is given in the sentence. You can use context to find the motivation; however, all the inputs do not provide context. Also, in some inputs, there can be zero motivation; output, 'None' in this case.
Input: Context: Robert decided to make a sandwich. He got the bread and bologna and cheese. He started to make the sandwich but forgot the mayo, so he got that. He put the bologna and cheese and mayo between two pieces of bread. 
 Sentence: Robert ate his sandwich. 
 Character: Robert
Output:
to satisfy his hunger