Q: 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 systemic-Pulmonary Shunt facilitate the Growth of the Pulmonary Valve Annulus in Patients With Tetralogy of Fallot?
Answer: SPS facilitates outgrowth of the PVA over somatic growth in patients with TOF. However, preservation of the PVA may not be achieved on staged repair if the initial PVA is too small.
A:
yes