Example diagram: Weights

The noteworthy feature here is that while classes (Rosemount 3051, Blogg & Co type A) are linked to ranges of properties, individuals (My thing) are linked to singular properties.

If we wish to do so, we can add level-2 classes, here Weight Relation, to classify various weight relations, as follows.

It's natural to define various ubiquitous properties, such as Weight, as superrelations to the ones that we apply for specialized domains, for instance in the following way. Note that the specialization from the Single Property Dimension Weight to the Property Range 4.65--4.74 Kg is sanctioned by Part 2.