{
  "required_concepts": [
    "borborygmi gas liquid and intestinal wall movement",
    "not the stomach speaking and can occur fed or fasting",
    "fasting migrating motor complex stomach small intestine cycles",
    "meal interrupts MMC and changes motility pattern",
    "motilin association not sole hunger hormone or complete cause",
    "ghrelin hunger sensation distinction",
    "no toxin cleaning or stomach self digestion claim",
    "Code and Marlett 1975 interdigestive complex context",
    "Vantrappen or Janssens human MMC motilin context",
    "less food damping plus gas liquid stronger contraction and quiet attention",
    "loudness does not measure hunger or calories",
    "swallowed air carbonation rapid eating lactose FODMAP diarrhea infection IBS differential",
    "no diagnosis from sound alone",
    "regular meals slow eating hydration gentle movement practical",
    "no huge meals extreme fasting excessive water or detox",
    "obstruction and gastrointestinal emergency red flags",
    "high pitched or absent sounds are not a home self test"
  ]
}