{
  "api": "aws-polly",
  "apiVersion": "v4",
  "audioFormat": "mp3",
  "voice": "Matthew",
  "prosody": {
    "rate": "+0%",
    "pitch": "-0%"
  },
  "language": "en-US",
  "text": "<prosody rate=\"+0%\" pitch=\"-0%\">This is the eight-factored <phoneme alphabet=\"ipa\" ph=\"sɐbbɐth\">sabbath</phoneme><break time=\"0.001s\"/>, they say,</prosody>",
  "guid": "0aa2dab3a4c90886b69f96bf41605ed0",
  "volume": "an_en_sujato_matthew"
}