First custom format:
{
  "trash_id": "guide-only",
  "trash_scores": {
    "default": -10000
  },
  "trash_description": "Language: Prefer X but i'll take Y",
  "name": "Language: English or Latin Spanish",
  "includeCustomFormatWhenRenaming": false,
  "specifications": [
    {
      "name": "Not English",
      "implementation": "LanguageSpecification",
      "negate": true,
      "required": true,
      "fields": {
        "value": 1
      }
    },
    {
      "name": "Not Latin Spanish",
      "implementation": "LanguageSpecification",
      "negate": true,
      "required": true,
      "fields": {
        "value": 34
      }
    }
  ]
}

Second custom format:

{
  "trash_id": "guide-only",
  "trash_scores": {
    "default": 10
  },
  "trash_description": "Prefer Language X",
  "name": "Language: Prefer Latin Spanish",
  "includeCustomFormatWhenRenaming": false,
  "specifications": [
    {
      "name": "Spanish (Latino) Language",
      "implementation": "LanguageSpecification",
      "negate": false,
      "required": false,
      "fields": {
        "value": 34
      }
    }
  ]
}