#!/usr/bin/env ruby
maxlen = 8

def change_roma( roma )
  roma.sub!( /shi/, 'si' )
  roma.sub!( /tsu/, 'tu' )
  roma.sub!( /chi/, 'ti' )
  roma
end

def mksmalldic( inf, outf = $>, maxlen = 8 )
  while inf.gets
    yomi, kanji = split
    change_roma( yomi )
    next if yomi.length > maxlen
    outf.print "#{yomi}\t#{kanji}\n"
  end
end


if __FILE__ == $0
  mksmalldic( ARGF )
end