Context of Timing windows is not clear

It's not clear from the model or user guide now `windowLower` and `windowUpper` should be defined. Taking this example from the UG:

It's not clear which of the following would be correct:
- Define windowing chronologically relative to the Timing's `value` (i.e., `windowLower` is always chronologically before `value` and `windowUpper` is always chronologically after `value`):
- `value` = P1D
- `windowLower` = PT1H
- `windowUpper` = PT2H
- `type` = Before
- "A occurs between (1 hour before 1 day before B) and (2 hours after 1 day before B)"
- Define windowing relative to the Timing's `value` in the context of the Timing's `type`:
- `value` = P1D
- `windowLower` = PT2H
- `windowUpper` = PT1H
- `type` = Before
- "A occurs between (1 day minus 2 hours) and (1 day plus 1 hour) before B"
- Define windowing chronologically relative to the Timing's `relativeFromScheduledInstance`:
- `value` = P1D
- `windowLower` = PT25H
- `windowUpper` = PT22H
- `type` = Before
- "A occurs between (25 hours before B) and (22 hours before B)"
- Define windowing relative to the Timing's `relativeFromScheduledInstance` in the context of the Timing's `type`:
- `value` = P1D
- `windowLower` = PT22H
- `windowUpper` = PT25H
- `type` = Before
- "A occurs between (22 hours) and (25 hours) before B"