Definition: 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.
Input: Question: Is application of a Scale for the Assessment and Rating of Ataxia ( SARA ) in Friedreich 's ataxia patients according to posturography limited?
Answer: The SARA, in FRDA patients, correlates with stance with visual control but not without visual control which emphasizes sensory ataxia. This suggests that application of the SARA in Friedreich's ataxia patients according to posturography is possible but presumably limited and FARS, although being a more time consuming scale, may have advantages over SARA in FRDA patients.
Output:
yes