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# Face Expression Analysis Results

The following XML shows a single record produced by face expression analysis.

    <record>
      ...
      <trackname>FaceExpression.Result</trackname>
      <FaceStateResult>
        <id>ca444959-3609-4e06-a633-1bd95e7b3440</id>
        <face>
          ...
        </face>
        <expression>Neutral</expression>
        <eyesopen>true</eyesopen>
        <spectacles>false</spectacles>
      </FaceStateResult>
    </record>

The record contains the following information:

- The `id` element contains a unique identifier for the detected face. The face detection engine issues an ID for each detected appearance of a face, and the records output from the face state analysis engine use the same IDs as the input records.

- The `face` element contains the location of the detected face. For more information about this data, see Face Detection Results.

- The `expression` element describes the facial expression (`Happy` or `Neutral` or `Unknown`). The value might be `Unknown` if the face is only partially visible or the person is not looking at the camera.
- The `eyesopen` element specifies whether the person's eyes are open (`true`) or closed (`false`). If the person has only one eye open (for example, if they are winking), Media Server reports that their eyes are open. The value might be `unknown` if the face is only partially visible or the person is not looking at the camera.
- The `spectacles` element specifies whether the person is wearing spectacles. The possible results are `true`, `false`, or `unknown`. The value might be `unknown` if the face is only partially visible or the person is not looking at the camera.

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