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.

Question: Does bilateral L1 and L2 dorsal root ganglion block for discogenic low-back pain?
Answer: We conclude that blocks of this nociceptive pathway in humans using bilateral DRG blocks has no therapeutic value.
yes