The Morgan Stanley&Co. Inc. Trust Floater Certificates Series 2001-578, relating to Round Rock Independent School District's unlimited-tax school building bonds (Williamson and Travis Counties, Texas) series 2002, are rated 'AAA/A-1+'. The long-term component of the rating is based on the state enhanced underlying bond. The short-term component of the rating is based on a guarantee provided by Morgan Stanley Dean Witter&Co. and liquidity facility provided by Morgan Stanley Dean Witter Municipal Funding Inc. until Feb. 20, 2003. Morgan Stanley&Co. Inc. Trust Floater Certificates Series 2001-587, relating to Massachusetts Health and Educational Facilities Authority's revenue bonds (Massachusetts Institute of Technology) series K, are rated 'AAA/A-1+'. The long-term component of the rating is based on the
