C. A. 4th Cir. [Certiorari granted, 502 U. S. 1057.] Motions for leave to file briefs as amici curiae filed by the following are granted: Hallmark Cards, Inc., Wal-Mart Stores et al., Eldon S. Reed, Ronald J. Wyles et al., ERISA Industry Committee et al., Lincoln National Corp., American Society of Pension Actuaries, Chamber of Commerce of the United States of America, and American College of Trust and Estate Counsel.