BACM — Rewrite the second paragraph of section 7.2.1 to clarify the relationship between the specification document and the normative XMI

The paragraph state:
For an implementation of the metamodel, the normative XMI that is part of this specification is intended to be an unambiguous and precise way to create an implementation that is equivalent to the underlying graphical predicate model. The non-normative XMI that is provided with the specification must be interpreted according to a set of rules to create a conforming implementation that is not based on MOF.
This paragraph is unclear and refers to a non-normative XMI that is NOT part of the specification.