You will be given a definition of a task first, then some input of the task.
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 rectosigmoid Localization of Radiopaque Markers Correlate with Prolonged Balloon Expulsion in Chronic Constipation : Results from a Multicenter Cohort?
Answer: Among patients with chronic constipation undergoing ROM transit testing, there is no association between rectosigmoid location of markers and rectoanal gradient or prolonged balloon expulsion.
Output:
no