TVRadioSchema-PARTS
- Add Thing > Track
- Put VideoTrack under Track
- Put Signing under VideoTrack
- Put AudioTrack under Track
- Put DataTrack under Track
- Put Caption under DataTrack
- Add Property TrackPurpose (text)
- Add Property TrackLanguage (text)
- Add Thing > Part
- Add Property PartName (text)
- Add Property Start
- Add Property End