In this part:
"Petitioner" means a person who seeks enforcement of an order for return of a child under the Hague Convention on the Civil Aspects of International Child Abduction, or enforcement of a child-custody determination.
"Respondent" means a person against whom a proceeding has been commenced for enforcement of an order for return of a child under the Hague Convention on the Civil Aspects of International Child Abduction, or enforcement of a child-custody determination.