AASHTOSample

{
  "model": {
    "system": "AASHTO",
    "language": "en",
    "fines_content": 34.0,
    "percent_passing_no10": 90.0,
    "percent_passing_no40": 76.0,
    "liquid_limit": 38.0,
    "plasticity_index": 12.0
  }
}