question: Analyze the following speech by the President for letter frequency and format the results in a JSON format using quotation marks around each key and value. Each letter should be a separate key with the frequency of occurrence as its value:
  
  "The strength of our democracy is rooted in the ability to have open and honest discussions. We must ensure that the voices of all citizens are heard and that our government remains accountable to the people. Transparency and truth are the cornerstones of our nation's greatness."
answer: ```json
  {
    "a": "17",
    "b": "1",
    "c": "5",
    "d": "8",
    "e": "27",
    "f": "3",
    "g": "3",
    "h": "9",
    "i": "9",
    "l": "3",
    "m": "5",
    "n": "17",
    "o": "13",
    "p": "3",
    "r": "14",
    "s": "15",
    "t": "20",
    "u": "7",
    "v": "3",
    "w": "2",
    "y": "2"
  }
  ```