<prompt> Answer this question truthfullyWhat is Yaz Sandbox?  <response>: <reason> Abdominal aortic aneurysms may be classified based on the size of the aneurysm:Small aneurysm: Diameter 4.0 cm Medium aneurysm: Diameter between 4.0 and 5.5 cm Large aneurysm: Diameter 5.5 cm Very large aneurysm: Diameter 6.0 cmAbdominal aortic aneurysms may also be classified based on the rate of aneurysm expansion:Non-rapidly expanding aneurysm: Diameter increase of 0.5 cm within 6 months OR 1.0 cm within 12 months Rapidly expanding aneurysm: Diameter increase of 0.5 cm within 6 months OR 1.0 cm within 12 months 