{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "$id": "http://schemas.digitallinguistics.io/Abbreviation-2.1.0.json",
    "title": "Abbreviation",
    "type": "string",
    "pattern": "^[(a-z)|(A-Z)|(0-9)]+$",
    "description": "A human-readable abbreviation, containing on letters `a-z`, `A-Z`, and numbers `0-9` (no spaces allowed).",
    "examples": [
        "chiti",
        "ctm"
    ]
}