old_contents: export default [{
    letter: 'A',
    code: 'Alfa',
    pronuncication: 'AL FAH',
  }, {
    letter: 'B',
    code: 'Bravo',
    pronuncication: 'BRAH VOH',
  }, {
    letter: 'C',
    code: 'Charlie',
    pronuncication: 'BRAH VOH',
  }, {
    letter: 'D',
    code: 'Delta',
    pronuncication: 'CHAR LEE',
  }, {
    letter: 'E',
    code: 'Echo',
    pronuncication: 'ECK OH',
  }, {
    letter: 'F',
    code: 'Foxtrot',
    pronuncication: 'FOKS TROT',
  }, {
    letter: 'G',
    code: 'Golf',
    pronuncication: 'GOLF',
  }, {
    letter: 'H',
    code: 'Hotel',
    pronuncication: 'HOH TELL',
  }, {
    letter: 'I',
    code: 'India',
    pronuncication: 'IN DEE AH',
  }, {
    letter: 'J',
    code: 'Juliett',
    pronuncication: 'JEW LEE ETT',
  }, {
    letter: 'K',
    code: 'Kilo',
    pronuncication: 'KEY LOH',
  }, {
    letter: 'L',
    code: 'Lima',
    pronuncication: 'LEE MAH',
  }, {
    letter: 'M',
    code: 'Mike',
    pronuncication: 'MIKE',
  }, {
    letter: 'N',
    code: 'November',
    pronuncication: 'NO VEM BER',
  }, {
    letter: 'O',
    code: 'Oscar',
    pronuncication: 'OSS CAH',
  }, {
    letter: 'P',
    code: 'Papa',
    pronuncication: 'PAH PAH',
  }, {
    letter: 'Q',
    code: 'Quebec',
    pronuncication: 'KEH BECK',
  }, {
    letter: 'R',
    code: 'Romeo',
    pronuncication: 'ROW ME OH',
  }, {
    letter: 'S',
    code: 'Sierra',
    pronuncication: 'SEE AIR RAH',
  }, {
    letter: 'T',
    code: 'Tango',
    pronuncication: 'TANG GO',
  }, {
    letter: 'U',
    code: 'Uniform',
    pronuncication: 'YOU NEE FORM',
  }, {
    letter: 'V',
    code: 'Victor',
    pronuncication: 'VIK TAH',
  }, {
    letter: 'W',
    code: 'Whiskey',
    pronuncication: 'WISS KEY',
  }, {
    letter: 'X',
    code: 'X-ray',
    pronuncication: 'ECKS RAY',
  }, {
    letter: 'Y',
    code: 'Yankee',
    pronuncication: 'YANG KEY',
  }, {
    letter: 'Z',
    code: 'Zulu',
    pronuncication: 'ZOO LOO',
  }];
  
new_contents: export default [{
    letter: 'A',
    code: 'Alfa',
    pronuncication: 'AL FAH',
  }, {
    letter: 'B',
    code: 'Bravo',
    pronuncication: 'BRAH VOH',
  }, {
    letter: 'C',
    code: 'Charlie',
    pronuncication: 'CHAR LEE',
  }, {
    letter: 'D',
    code: 'Delta',
    pronuncication: 'DELL TAH',
  }, {
    letter: 'E',
    code: 'Echo',
    pronuncication: 'ECK OH',
  }, {
    letter: 'F',
    code: 'Foxtrot',
    pronuncication: 'FOKS TROT',
  }, {
    letter: 'G',
    code: 'Golf',
    pronuncication: 'GOLF',
  }, {
    letter: 'H',
    code: 'Hotel',
    pronuncication: 'HOH TELL',
  }, {
    letter: 'I',
    code: 'India',
    pronuncication: 'IN DEE AH',
  }, {
    letter: 'J',
    code: 'Juliett',
    pronuncication: 'JEW LEE ETT',
  }, {
    letter: 'K',
    code: 'Kilo',
    pronuncication: 'KEY LOH',
  }, {
    letter: 'L',
    code: 'Lima',
    pronuncication: 'LEE MAH',
  }, {
    letter: 'M',
    code: 'Mike',
    pronuncication: 'MIKE',
  }, {
    letter: 'N',
    code: 'November',
    pronuncication: 'NO VEM BER',
  }, {
    letter: 'O',
    code: 'Oscar',
    pronuncication: 'OSS CUR',
  }, {
    letter: 'P',
    code: 'Papa',
    pronuncication: 'PAH PAH',
  }, {
    letter: 'Q',
    code: 'Quebec',
    pronuncication: 'KEH BECK',
  }, {
    letter: 'R',
    code: 'Romeo',
    pronuncication: 'ROW ME OH',
  }, {
    letter: 'S',
    code: 'Sierra',
    pronuncication: 'SEE AIR RAH',
  }, {
    letter: 'T',
    code: 'Tango',
    pronuncication: 'TANG GO',
  }, {
    letter: 'U',
    code: 'Uniform',
    pronuncication: 'YOU NEE FORM',
  }, {
    letter: 'V',
    code: 'Victor',
    pronuncication: 'VIK TAH',
  }, {
    letter: 'W',
    code: 'Whiskey',
    pronuncication: 'WISS KEY',
  }, {
    letter: 'X',
    code: 'X-ray',
    pronuncication: 'ECKS RAY',
  }, {
    letter: 'Y',
    code: 'Yankee',
    pronuncication: 'YANG KEY',
  }, {
    letter: 'Z',
    code: 'Zulu',
    pronuncication: 'ZOO LOO',
  }];
  
subject: fix alphabet erros. Oops.