| Frame Element | Obstruction |
| Identifier | 0000000420 |
| Parent | Instrument |
| Number of Definitions | 2 |
| Number of Children | 0 |
| Path to Top | Obstruction -> Instrument -> Entity -> Top |
| Frame | Type | Definition |
| Eclipse | C | The entity which blocks the Eclipsed entity from view. |
| Hiding_objects | P | The entity that the Agent uses to block the Hidden_object from being perceptible. |