I am traveling between Dec. 16 and Dec. 23 and will not read my email. In case of an emergency, please contact Patrick Allen pjallen@cs.washington.edu Your email has reached Dan Suciu, suciu@cs.washington.edu. Dan -------- Dan Suciu Computer Science Department, 114 Sieg Univ. of Washington, Box 352350 www.cs.washington.edu/homes/suciu