I, hltli~ttut:lion T i l e u s e l u l n e s s o f Mach ine -T rac tab le Dict ionar ies (MTDs) ill atlCtilllatic SCllSe taggillg el running text ix clearly demons t ra ted in Tong , el ill., (1993). While previous work (Yarowsky, 1992: Gale, el al., 1092, 1903) lelies heavi ly on tile role of statistics, TOllg'S sysienl illilkes use of (Ill(: MTD as well as m<~ Machine Readable l)iciionarles (...