The input is a sentence. The sentence includes an emotion. The goal of the task is to classify the emotion in the sentence to one of the classes: 'fear', 'joy', 'anger', 'sadness'. The emotion mainly depends on the adverb within the sentence.

Example Input: He found himself in a heartbreaking situation.
Example Output: sadness

Example Input: Melanie told us all about the recent threatening events.
Example Output: fear

Example Input: Kristin made me feel happy.
Example Output:
joy