Alumni of an organization.

A sub property of participant. The person/organization being supported.

A person or organization attending the event.

An organizer of an Event.

A performer at the event—for example, a presenter, musician, musical group or actor.

A sub property of participant. The opponent on this action.

A sub property of object. The person or organization being followed.

An entity that arranges for an exchange between a buyer and a seller. In most cases a broker never acquires or releases ownership of a product or service involved in an exchange. If it is not clear whether an entity is a broker, seller, or buyer, the latter two terms are preferred.

Party placing the order or paying the invoice.

Organization or Person offering the job position.

A sub property of participant. The person that borrows the object being lent.

A sub property of participant. The winner of the action.

A person or organization that supports a thing through a pledge, promise, or financial contribution. E.g. a sponsor of a Medical Study or a corporate sponsor of an event.

The artist that performed this album or recording.

The person or organization who wrote a composition, or who is the composer of a work performed at some event.

The person who wrote the words.

The group the release is credited to if different than the byArtist. For example, Red and Blue is credited to "Stefani Germanotta Band", but by Lady Gaga.

Someone working for this organization.

A person or organization who founded this organization.

The organization or person from which the product was acquired.

A child of the person.

A colleague of the person.

The most generic uni-directional social relation.

The most generic bi-directional social/work relation.