This test is spelled as a "Negative" constraint to avoid attempting to
hard-code a list of the recognized OWL "built-in" datatypes alongside
custom RDFS datatypes (such as UCO's vocabulary namespace members).

The anonymous node shape design pattern is documented in PR 564, commit
77cd47d.

This patch is known to fail CI at the moment because it catches the
error described in 562, but does not resolve that situation.  This patch
is provided now to prevent this implementation error pattern from
arising in the future.

References:
* #562
* 77cd47d

Signed-off-by: Alex Nelson <alexander.nelson@nist.gov>

This patch is implemented based on the early draft-state of Issue 550,
to correct the issue reported in Issue 562.

No effects were observed on Make-managed files.

References:
* #550
* #562

Signed-off-by: Alex Nelson <alexander.nelson@nist.gov>

Commit ba77dea used a design pattern that I now believe is not
applicable.  This patch revises the new shape to the corrected from now
in PR 564.

No effects were observed on Make-managed files.

References:
* #562
* 6669aab

Signed-off-by: Alex Nelson <alexander.nelson@nist.gov>

No effects were observed on Make-managed files.

References:
* #562

Signed-off-by: Alex Nelson <alexander.nelson@nist.gov>

No effects were observed on Make-managed files.

References:
* #562

Acked-by: Paul Brandt <paul@brandt.name>
Signed-off-by: Alex Nelson <alexander.nelson@nist.gov>