Given the task definition and input, reply with output. 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: Do physician global assessments or blood tests predict mucosal healing in ulcerative colitis?
Answer: Neither blood tests nor PGA could replace endoscopy for assessing mucosal healing. When patients experienced active symptoms and abnormal serum markers, they were highly likely to have abnormal endoscopy. However, inactive symptoms or normal laboratory values did not preclude having active endoscopic disease.
no