{
  "where": {
    "all": [
      {
        "any": [
          { "field": "title", "match": "inference" },
          { "field": "title", "match": "model serving" },
          { "field": "title", "match": "llm serving" }
        ]
      },
      {
        "not": [
          { "field": "title", "match": "causal" },
          { "field": "title", "match": "statistical" }
        ]
      },
      { "field": "location.country", "eq": "United States" }
    ]
  },
  "size": 10000
}