# Define signature in Class-based form
class Emotion(dspy.Signature):
    # Describe the task
    """Classify emotions in a sentence."""

    sentence = dspy.InputField()
    # Adding description to the output field
    sentiment = dspy.OutputField(desc="Possible choices: sadness, joy, love, anger, fear, surprise.")

classify_class_based = dspy.Predict(Emotion)

# Issue prediction
classify_class_based(sentence=sentence).sentiment