addr:MultiSiteLandmarkAddress_type

The outer and the inner landmark classes must be
expressed explicitly as landmark names. The inner name
is more specific and the Outer name is more general. In
the case of Truth Hall Room 306 Howard University".
Howard University would be an outer LandmarkName, and
Truth hall would be the inner LandmarkName. The inner
LandmarkName may conflict with more global landmark
names if not distinguished by a more general
LandmarkName.