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.

Ex Input:
Question: Does three-dimensional assessment of ultrasound features in women with clomiphene citrate-resistant polycystic ovarian syndrome ( PCOS ) : ovarian stromal volume correlate with biochemical indices?
Answer: These findings demonstrate an association of the total ovarian volume, pre-antral follicle number and total follicular volume with some of the biochemical indices of PCOS, but no association was observed between ovarian stromal volume and these indices.

Ex Output:
no


Ex Input:
Question: Is radiological review of specimen radiographs after breast localisation biopsy always necessary?
Answer: This study shows that a suitably trained or experienced surgeon can assess specimen radiographs effectively without the need for intraoperative radiological input although complete histological resection is not guaranteed despite specimen radiographs demonstrating clear margins.

Ex Output:
no


Ex Input:
Question: Is downregulation of microRNAs 145-3p and 145-5p a long-term predictor of postmenopausal breast cancer risk : The ORDET prospective study?
Answer: These observations and the prospective design of our study lend support to the hypothesis that downregulation of specific miRNAs constitutes an early event in cancer development. This finding might be used for breast cancer prevention.

Ex Output:

yes