0000950169-00-000425 10-K/A 1 19991231 20000501 SYLVAN LEARNING SYSTEMS INC 0000912766 8200 521492296 MD 1231 10-K/A 34 000-22844 614898 1000 LANCASTER ST BALTIMORE MD 21202 4108438000 1000 LANCASTER ST BALTIMORE MD 21202 10-K/A 1 000095016900000425-001-seq1-10-k-a.txt SYLVAN LEARNING SYSTEMS, INC.