http://xmlns.com/foaf/0.1/primaryTopic

used by 72:

• agris
• aspire-bournemouth
• aspire-brunel
• aspire-harper-adams
• aspire-keele
• aspire-manchester
• aspire-mmu
• aspire-ntu
• aspire-roehampton
• aspire-st-andrews
• aspire-sussex
• aspire-ucl
• aspire-uclan
• bathing-water-surveys-guideline-standards-1994-to-2011
• bioimages
• company-identifiers-uris
• data-open-ac-uk
• dbpedia-el
• dbpedia-eu
• dbpedia-ja
• dbpedia-lite
• dbpedia-nl
• debian-package-tracking-system
• education-openuplabs
• glastonbury-2011
• idreffr
• legislation-openuplabs
• linkedmarkmail
• mexico
• morelab
• opencorporates
• productontology
• rdfize-lastfm
• rdfohloh
• rkb-explorer-webconf
• southampton-ac-uk-profile
• statusnet-1w6-org
• statusnet-alexandrefranke-com
• statusnet-bka-li
• statusnet-ced117-net
• statusnet-doomicile-de
• statusnet-gomertronic-com
• statusnet-hackerposse-com
• statusnet-imirhil-fr
• statusnet-johndrinkwater-name
• statusnet-kaimi-cc
• statusnet-legadolibre-com-ar
• statusnet-mamalibre-com-ar
• statusnet-m-kuttner-com
• statusnet-mulestable-net
• statusnet-my-status-tk
• statusnet-ourcoffs-org-au
• statusnet-panda-id-au
• statusnet-postblue-info
• statusnet-qdnx-org
• statusnet-rainbowdash-net
• statusnet-samnoble-org
• statusnet-scoffoni-net
• statusnet-shnoulle-net
• statusnet-skilledtests-com
• statusnet-somsants-net
• statusnet-ssweeny-net
• statusnet-thornton2-com
• statusnet-timttmy-co-uk
• statusnet-tl1n-com
• statusnet-tschlotfeldt-de
• sudocfr
• taxonconcept-assets
• thesesfr
• transparency-linked-data
• transport-openuplabs
• uk-legislation-api