{
  "@context": {
    "@vocab": "https://schema.org/",
    "apod": "https://api.nasa.gov/planetary/apod#",
    "nasa": "https://api.nasa.gov/",
    "xsd": "http://www.w3.org/2001/XMLSchema#",

    "ApodEntry": {
      "@id": "apod:ApodEntry",
      "@type": "@id",
      "rdfs:label": "Astronomy Picture of the Day Entry",
      "rdfs:comment": "A single entry from the NASA Astronomy Picture of the Day API"
    },

    "date": {
      "@id": "schema:datePublished",
      "@type": "xsd:date",
      "rdfs:label": "APOD Date",
      "rdfs:comment": "The date of the Astronomy Picture of the Day entry in YYYY-MM-DD format"
    },

    "title": {
      "@id": "schema:name",
      "@type": "xsd:string",
      "rdfs:label": "Title",
      "rdfs:comment": "The title of the astronomy image or video"
    },

    "explanation": {
      "@id": "schema:description",
      "@type": "xsd:string",
      "rdfs:label": "Explanation",
      "rdfs:comment": "Detailed explanation of the astronomy picture or video written by a NASA scientist"
    },

    "url": {
      "@id": "schema:contentUrl",
      "@type": "@id",
      "rdfs:label": "Image or Video URL",
      "rdfs:comment": "The standard-resolution URL of the APOD image or video"
    },

    "hdurl": {
      "@id": "apod:hdUrl",
      "@type": "@id",
      "rdfs:label": "High-Definition URL",
      "rdfs:comment": "The URL for the high-resolution version of the APOD image"
    },

    "media_type": {
      "@id": "schema:encodingFormat",
      "@type": "xsd:string",
      "rdfs:label": "Media Type",
      "rdfs:comment": "The type of media: 'image' or 'video'"
    },

    "copyright": {
      "@id": "schema:copyrightHolder",
      "@type": "xsd:string",
      "rdfs:label": "Copyright",
      "rdfs:comment": "The name of the copyright holder. Absent when content is NASA/public domain."
    },

    "concepts": {
      "@id": "schema:keywords",
      "rdfs:label": "Concepts",
      "rdfs:comment": "Ordered dictionary of concept keywords derived from the explanation text"
    },

    "concept_tags": {
      "@id": "apod:conceptTags",
      "@type": "xsd:boolean",
      "rdfs:label": "Concept Tags Flag",
      "rdfs:comment": "Boolean reflection of the concept_tags request parameter"
    },

    "thumbnail_url": {
      "@id": "schema:thumbnailUrl",
      "@type": "@id",
      "rdfs:label": "Thumbnail URL",
      "rdfs:comment": "URL of the video thumbnail image. Only present for video entries when thumbs=True."
    },

    "service_version": {
      "@id": "apod:serviceVersion",
      "@type": "xsd:string",
      "rdfs:label": "Service Version",
      "rdfs:comment": "The version of the APOD API service that fulfilled the request"
    },

    "resource": {
      "@id": "apod:resource",
      "rdfs:label": "Resource",
      "rdfs:comment": "Dictionary describing the image_set or planet the response illustrates"
    }
  },

  "@graph": [
    {
      "@type": "schema:WebAPI",
      "@id": "https://api.nasa.gov/planetary/apod",
      "schema:name": "NASA Astronomy Picture of the Day API",
      "schema:description": "NASA APOD REST API providing daily astronomy images and explanations curated by NASA scientists. Available from 1995-06-16 onward.",
      "schema:url": "https://api.nasa.gov/",
      "schema:documentation": "https://github.com/nasa/apod-api",
      "schema:provider": {
        "@type": "schema:Organization",
        "@id": "https://www.nasa.gov/",
        "schema:name": "National Aeronautics and Space Administration (NASA)",
        "schema:url": "https://www.nasa.gov/"
      },
      "schema:license": "https://www.apache.org/licenses/LICENSE-2.0.html",
      "schema:keywords": [
        "astronomy",
        "space",
        "NASA",
        "APOD",
        "images",
        "science",
        "education"
      ],
      "schema:availableChannel": {
        "@type": "schema:ServiceChannel",
        "schema:serviceUrl": "https://api.nasa.gov/planetary/apod",
        "schema:availableLanguage": "en"
      }
    }
  ]
}