OrganizationRole: OrganizationRole
In cboettig/schemar: Create Structured Data Using the Schema.org Vocabulary

A subclass of Role used to describe roles within organizations.

OrganizationRole(id = NULL, numberedPosition = NULL, startDate = NULL,
  roleName = NULL, namedPosition = NULL, endDate = NULL, url = NULL,
  sameAs = NULL, potentialAction = NULL, name = NULL,
  mainEntityOfPage = NULL, image = NULL, identifier = NULL,
  disambiguatingDescription = NULL, description = NULL,
  alternateName = NULL, additionalType = NULL)

`id`	identifier for the object (URI)
`numberedPosition`	(Number type.) A number associated with a role in an organization, for example, the number on an athlete's jersey.
`startDate`	(DateTime or Date or DateTime or Date or DateTime or Date or DateTime or Date or DateTime or Date type.) The start date and time of the item (in [ISO 8601 date format](http://en.wikipedia.org/wiki/ISO_8601)).
`roleName`	(URL or Text type.) A role played, performed or filled by a person or organization. For example, the team of creators for a comic book might fill the roles named 'inker', 'penciller', and 'letterer'; or an athlete in a SportsTeam might play in the position named 'Quarterback'.
`namedPosition`	(URL or Text type.) A position played, performed or filled by a person or organization, as part of an organization. For example, an athlete in a SportsTeam might play in the position named 'Quarterback'.
`endDate`	(DateTime or Date or DateTime or Date or DateTime or Date or DateTime or Date or DateTime or Date type.) The end date and time of the item (in [ISO 8601 date format](http://en.wikipedia.org/wiki/ISO_8601)).
`url`	(URL type.) URL of the item.
`sameAs`	(URL type.) URL of a reference Web page that unambiguously indicates the item's identity. E.g. the URL of the item's Wikipedia page, Wikidata entry, or official website.
`potentialAction`	(Action type.) Indicates a potential Action, which describes an idealized action in which this thing would play an 'object' role.
`name`	(Text type.) The name of the item.
`mainEntityOfPage`	(URL or CreativeWork type.) Indicates a page (or other CreativeWork) for which this thing is the main entity being described. See [background notes](/docs/datamodel.html#mainEntityBackground) for details.
`image`	(URL or ImageObject type.) An image of the item. This can be a [[URL]] or a fully described [[ImageObject]].
`identifier`	(URL or Text or PropertyValue type.) The identifier property represents any kind of identifier for any kind of [[Thing]], such as ISBNs, GTIN codes, UUIDs etc. Schema.org provides dedicated properties for representing many of these, either as textual strings or as URL (URI) links. See [background notes](/docs/datamodel.html#identifierBg) for more details.
`disambiguatingDescription`	(Text type.) A sub property of description. A short description of the item used to disambiguate from other, similar items. Information from other properties (in particular, name) may be necessary for the description to be useful for disambiguation.
`description`	(Text type.) A description of the item.
`alternateName`	(Text type.) An alias for the item.
`additionalType`	(URL type.) An additional type for the item, typically used for adding more specific types from external vocabularies in microdata syntax. This is a relationship between something and a class that the thing is in. In RDFa syntax, it is better to use the native RDFa syntax - the 'typeof' attribute - for multiple types. Schema.org tools may have only weaker understanding of extra types, in particular those defined externally.