[
  {
    "name": "buying",
    "active": true,
    "preferenceType": "gain",
    "type": "condition",
    "valueType": "enumeration",
    "domain": [
      "vhigh",
      "high",
      "med",
      "low"
    ],
    "algorithm": "SHA-256",
    "missingValueType": "mv2"
  },
  {
    "name": "maint",
    "active": true,
    "preferenceType": "gain",
    "type": "condition",
    "valueType": "enumeration",
    "domain": [
      "vhigh",
      "high",
      "med",
      "low"
    ],
    "algorithm": "SHA-256",
    "missingValueType": "mv2"
  },
  {
    "name": "doors",
    "active": true,
    "preferenceType": "gain",
    "type": "condition",
    "valueType": "enumeration",
    "domain": [
      "2",
      "3",
      "4"
    ],
    "algorithm": "SHA-256",
    "missingValueType": "mv2"
  },
  {
    "name": "persons",
    "active": true,
    "preferenceType": "gain",
    "type": "condition",
    "valueType": "enumeration",
    "domain": [
      "2",
      "4",
      "more"
    ],
    "algorithm": "SHA-256",
    "missingValueType": "mv2"
  },
  {
    "name": "lug_boot",
    "active": true,
    "preferenceType": "gain",
    "type": "condition",
    "valueType": "enumeration",
    "domain": [
      "small",
      "med",
      "big"
    ],
    "algorithm": "SHA-256",
    "missingValueType": "mv2"
  },
  {
    "name": "safety",
    "active": true,
    "preferenceType": "gain",
    "type": "condition",
    "valueType": "enumeration",
    "domain": [
      "low",
      "med",
      "high"
    ],
    "algorithm": "SHA-256",
    "missingValueType": "mv2"
  },
  {
    "name": "class",
    "active": true,
    "preferenceType": "gain",
    "type": "decision",
    "valueType": "enumeration",
    "domain": [
      "unacc",
      "acc",
      "good",
      "vgood"
    ],
    "algorithm": "SHA-256",
    "missingValueType": "mv2"
  }
]