write {source : <Sid>, target : <Sid>}
This verifies that the source resource consumer is allowed to write data to the target resource.
It returns the "granted" result if the integrity level of the target resource does not exceed the integrity level of the source resource consumer.
It returns the "denied" result in the following cases:
target resource exceeds the integrity level of the source resource consumer.target resource is incomparable to the integrity level of the source resource consumer.source resource consumer or to the target resource.source or target value is outside of the permissible range.