TASK 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.
PROBLEM: Question: Does restrictive left ventricular filling pattern result from increased left atrial pressure alone?
Answer: The restrictive filling pattern is distinguished from overfilling of a normal ventricle by a reduced and delayed E' and a shortened E deceleration time that reflect slow relaxation and increased LV stiffness.

SOLUTION: no

PROBLEM: Question: Is routine preoperative lymphoscintigraphy necessary prior to sentinel node biopsy for breast cancer?
Answer: Preoperative lymphoscintigraphy adds little additional information to intraoperative lymphatic mapping, and its routine use is not justified.

SOLUTION: no

PROBLEM: Question: Does catalase improve saccharification of lignocellulose by reducing lytic polysaccharide monooxygenase-associated enzyme inactivation?
Answer: Oxidative inactivation of commercial cellulase mixtures is a significant factor influencing the overall saccharification efficiency and the addition of catalase can be used to protect these mixtures from inactivation.

SOLUTION:
yes