http://www.w3.org/ns/prov#hadPrimarySource
used by 15:
- southampton-ac-uk-apps
- southampton-ac-uk-cls-extras
- southampton-ac-uk-disabledgo
- southampton-ac-uk-jacs
- southampton-ac-uk-jargon
- southampton-ac-uk-org
- southampton-ac-uk-phonebook
- southampton-ac-uk-photos
- southampton-ac-uk-places
- southampton-ac-uk-pressinfo
- southampton-ac-uk-profile
- southampton-ac-uk-room-features
- southampton-ac-uk-services
- southampton-ac-uk-stats
- southampton-ac-uk-vending-machines