The diagram shows a package Pckg that includes two classes G and H with a one-to-many association
between them. The multiplicity '1..5' near class G on the 'gh' association end suggests that for each H
object, there should be between 1 to 5 associated G objects. However, the '*' (multiplicity many)
near class H on the 'gh' association end indicates that a G object can be associated with zero or more
H objects. This implies that it's possible to have a G object that is not associated with any H object.
Reference:
UML 2.x Superstructure Specification: Multiplicity notations and association rules are clearly defined
in the UML specifications, which detail the semantics of multiplicities and their implications for
object association.
UML 2.x Infrastructure Specification: Further explains the basic constructs of the UML metamodel,
which underpin the interpretation of multiplicities in associations.