TEXT learn-classic-vi-part1.txt
  TEXT learn-classic-vi-part2-answers.txt
  TEXT learn-classic-vi-part2.txt
  TEXT learn-classic-vi-part3-answers.txt
  TEXT learn-classic-vi-part3.txt
  TEXT learn-classic-vi-part4-answers.txt
  TEXT learn-classic-vi-part4.txt
  TEXT learn-classic-vi-part5.txt
  TEXT learn-classic-vi-part6.txt
  TEXT learn-classic-vi-part7.txt
  TEXT learn-classic-vi-part8-answers.txt
  TEXT learn-classic-vi-part8.txt
  TEXT learn-classic-vi-part9-answers.txt
  TEXT learn-classic-vi-part9.txt