openapi: 3.0.2

info:
  title: ...
  version: 0.0.0

paths:
  /foo:
    get:
      responses:
        200:
          description: ...
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Bar'

components:
  schemas:
    Bar:
      type: string
      enum: 
        - Foo
        - Bar
        - Foo Bar
        - Foo-Bar
        - 1Foo
        - Bar
        - ' Foo'
        - ' Foo '
        - _Foo_