Amazon Textract Context

{
  "@context": {
    "@vocab": "https://schema.org/",
    "aws": "https://aws.amazon.com/textract/schemas/",
    "textract": "https://docs.aws.amazon.com/textract/latest/dg/API_Reference.html#",
    "DocumentAnalysis": {
      "@id": "aws:DocumentAnalysis",
      "@context": {
        "DocumentMetadata": "aws:documentMetadata",
        "Blocks": "aws:Block",
        "AnalyzeDocumentModelVersion": "schema:softwareVersion"
      }
    },
    "Block": {
      "@id": "aws:Block",
      "@context": {
        "BlockType": "schema:additionalType",
        "Confidence": "aws:confidence",
        "Text": "schema:text",
        "TextType": "aws:textType",
        "Id": "schema:identifier",
        "Geometry": "aws:Geometry",
        "Relationships": "aws:relationships",
        "Page": "schema:pagination",
        "EntityTypes": "aws:entityTypes",
        "SelectionStatus": "aws:selectionStatus"
      }
    },
    "Geometry": {
      "@id": "aws:Geometry",
      "@context": {
        "BoundingBox": "aws:BoundingBox",
        "Polygon": "aws:polygon"
      }
    },
    "BoundingBox": {
      "@id": "aws:BoundingBox",
      "@context": {
        "Width": "schema:width",
        "Height": "schema:height",
        "Left": "aws:left",
        "Top": "aws:top"
      }
    },
    "DocumentMetadata": {
      "@id": "aws:DocumentMetadata",
      "@context": {
        "Pages": "schema:numberOfPages"
      }
    },
    "ExpenseDocument": {
      "@id": "aws:ExpenseDocument",
      "@context": {
        "ExpenseIndex": "schema:position",
        "SummaryFields": "aws:summaryFields",
        "LineItemGroups": "aws:lineItemGroups"
      }
    },
    "IdentityDocument": {
      "@id": "aws:IdentityDocument",
      "@context": {
        "DocumentIndex": "schema:position",
        "IdentityDocumentFields": "aws:identityDocumentFields"
      }
    },
    "Query": {
      "@id": "aws:Query",
      "@context": {
        "Text": "schema:text",
        "Alias": "schema:alternateName",
        "Pages": "aws:pages"
      }
    }
  }
}