Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Context: Anna was on a ship in the ocean. She was watching the waves eagerly. She hoped to see a mermaid! She tried to scan the entire ocean. 
 Sentence: But after weeks, she had not seen any mermaids. 
 Character: Mermaid
Student:
None