Only one owner

Rule ID	Widget 9
Conformance	Required
Definition	Elements must be owned by only one parent role.
Purpose	ARIA container elements have require child elements. When the HTML DOM parent/child relationships do not identify the child elements the `aria-owns` attribute can be used to reference the child elements. A child element can only be referenced using `aria-owns` by one container element.
Conformance	Required
WCAG Success Criteria	Success Criterion 4.1.2 Name, Role, Value Other Related Success Criterion: Success Criterion 1.3.1 Info and Relationships Success Criterion 3.3.2 Labels or Instructions
Rule Category	ARIA Widgets
Rule Scope	Element
First Step	no
aXe Rules
Wave Rules
Techniques	Container elements using `aria-owns` attribute must accurately reference the associated child elements. A child element can only be referenced by one container element using the `aria-owns` attribute. Update the application to use the DOM parent/child relationships instead of using `aria-owns` technique. NOTE: HTML DOM parent/child relationships for defining relationships is preferred over the use of `aria-owns` attribute, since it is less likely to result in authoring errors associated with creating and referencing elements with unique `id`s.
Information Links	Accessible Rich Internet Applications (WAI-ARIA) 1.2 Specification: Owned Element definition Accessible Rich Internet Applications (WAI-ARIA) 1.2 Specification: aria-owns attribute ARIA Authoring Practices MDN Web Docs: ARIA Web Fundamentals: Introduction to ARIA