[Question] How to do an array of arrays in a JSON-LD @context

Hi All

I need to create a context that models an array of arrays, and I was wondering how to do it.

Possibility 1: "tags": {"@container": "@list", "@type": "@list" }

{
  "@context": {
    "@version": 1.1,
    "@vocab": "http://example.org/",
    "tags": {
      "@container": "@list",
      "@type": "@list"
    }
  },
  "tags": [
    ["A", "B", "C"],
    ["D", "E", "F"],
    ["G", "H", "I"]
  ]
}

Possibility 2: "tags": {"@container": "@list"}

{
  "@context": {
    "@vocab": "http://example.org/",
    "tags": {"@container": "@list"}
  },
  "tags": [
    ["A", "B", "C"],
    ["D", "E", "F"],
    ["G", "H", "I"]
  ]
}

Possibility 3: Other (?)

Any help greatly appreciated

Review the issue's three JSON-LD @context examples and the JSON-LD 1.1 specification, focusing on how nested arrays and @list are defined. Determine which form, if any, is valid and document the expected representation or clarify that the question needs maintainer guidance; no repository file or test is named.