00000nz  a2200000n  4500
001  KSH1998024145
005  20000418023147
008  980429 n azknn|abn          |a a|a    | 
150  ▼a확장 문법[擴張文法]▲
450  ▼a증가 문법[增加文法]▲
450  ▼wr▼i영어▼aaugmented grammar▲
550  ▼wg▼a문법[文法]▲