Gnip Retweet Tweet Schema in Activity Streams JSON

ActivityStreamTweetRetweet.json

{
  "verb": "share",
  "postedTime": "2010-10-21T16:03:11+00:00",
  "body": "RT @Alterian: Woot! @Alterian recognized in leading analyst firm's Magic Quadrant for Enterprise Marketing Management... http://fb.me/z3 ...",
  "twitter_entities": {
    "urls": [
      {
        "expanded_url": null,
        "url": "http://fb.me/z3",
        "indices": [
          121,
          136
        ]
      }
    ],
    "hashtags": [

    ],
    "user_mentions": [
      {
        "name": "Alterian",
        "id_str": "33475580",
        "id": 33475580,
        "indices": [
          3,
          12
        ],
        "screen_name": "Alterian"
      },
      {
        "name": "Alterian",
        "id_str": "33475580",
        "id": 33475580,
        "indices": [
          20,
          29
        ],
        "screen_name": "Alterian"
      }
    ]
  },
  "actor": {
    "location": {
      "displayName": "Boulder, CO",
      "objectType": "place"
    },
    "postedTime": "2008-10-24T23:22:09+00:00",
    "displayName": "Gnip, Inc.",
    "preferredUsername": "gnip",
    "utcOffset": -25200,
    "objectType": "person",
    "statusesCount": 302,
    "languages": [
      "en"
    ],
    "listedCount": 23,
    "links": [
      {
        "href": "http://blog.gnip.com",
        "rel": "me"
      }
    ],
    "friendsCount": 71,
    "followersCount": 260,
    "summary": "Gnip makes it really easy for you to collect social data for your business.",
    "link": "http://twitter.com/gnip",
    "image": "http://a3.twimg.com/profile_images/62803643/icon_normal.png"
  },
  "objectType": "activity",
  "id": "tag:search.twitter.com,2005:28039685128",
  "link": "http://twitter.com/gnip/statuses/28039685128",
  "generator": {
    "displayName": "web",
    "link": "http://twitter.com"
  },
  "object": {
    "verb": "post",
    "postedTime": "2010-10-21T15:55:38+00:00",
    "body": "Woot! @Alterian recognized in leading analyst firm's Magic Quadrant for Enterprise Marketing Management... http://fb.me/z3cDQNC3",
    "entities": {
      "urls": [
        {
          "expanded_url": null,
          "url": "http://fb.me/z3cDQNC3",
          "indices": [
            107,
            128
          ]
        }
      ],
      "hashtags": [

      ],
      "user_mentions": [
        {
          "name": "Alterian",
          "id_str": "33475580",
          "id": 33475580,
          "indices": [
            6,
            15
          ],
          "screen_name": "Alterian"
        }
      ]
    },
    "actor": {
      "location": {
        "displayName": "HQ Bristol, UK",
        "objectType": "place"
      },
      "postedTime": "2009-04-20T10:21:26+00:00",
      "displayName": "Alterian",
      "preferredUsername": "Alterian",
      "utcOffset": 0,
      "objectType": "person",
      "statusesCount": 612,
      "languages": [
        "en"
      ],
      "listedCount": 117,
      "links": [
        {
          "href": "http://www.alterian.com",
          "rel": "me"
        }
      ],
      "friendsCount": 1768,
      "followersCount": 1383,
      "summary": "Alterian combines analytics, database marketing, email, content management, and social media monitoring enabling companies to better engage with the individual",
      "link": "http://twitter.com/Alterian",
      "image": "http://a1.twimg.com/profile_images/563751337/eye_64x64_normal.gif"
    },
    "objectType": "activity",
    "id": "tag:search.twitter.com,2005:28039053935",
    "link": "http://twitter.com/Alterian/statuses/28039053935",
    "generator": {
      "displayName": "Facebook",
      "link": "http://www.facebook.com/twitter"
    },
    "object": {
      "postedTime": "2010-10-21T15:55:38+00:00",
      "id": "tag:search.twitter.com,2005:28039053935",
      "objectType": "note",
      "link": "http://twitter.com/Alterian/statuses/28039053935",
      "summary": "Woot! @Alterian recognized in leading analyst firm's Magic Quadrant for Enterprise Marketing Management... http://fb.me/z3cDQNC3"
    },
    "provider": {
      "displayName": "Twitter",
      "objectType": "service",
      "link": "http://www.twitter.com"
    }
  },
  "provider": {
    "displayName": "Twitter",
    "objectType": "service",
    "link": "http://www.twitter.com"
  }
}

Found that, yes "object" represents retweeted object. Ref: http://support.gnip.com/customer/portal/articles/477765-twitter-activity-streams-format#ActivityObject