UMLR — Clarify Property Qualifiers with a full Example

Figure 11.37 has an example with presumably an Association for:

Bank::persons : Person[*]

Person::banks : Bank[*]

adding explicit names for clarity.

The qualifier presumably adds a nested Property

Bank::persons::accountNo : Person[?]

specifying an important multiplicity and a possibly redundant type, although a qualified association might perhaps return a derived type.

Where is it modeled that the qualifier itself is Integer[1] or perhaps String[3]?

Presumably an opposite qualifier is required and this must form part of a refined Association. If this is indeed the case it needs a better example. If it not the case, the alternative solution needs an example.