Detailed Instructions: Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.
Q: Question: Do -Opioid receptors in the accumbens shell mediate the influence of both excitatory and inhibitory predictions on choice?
Answer: These findings suggest that -opioid receptors in the NAc-S were involved in the effects of predictive learning on choice between actions, whether those predictions involve the presence or absence of specific rewarding events.
A:
yes