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

used by 12:

• annuaire
• artenuevosmedios-gnoss
• educationalprograms_sisvu
• gnoss
• green-competitiveness-gnoss
• ineverycrea
• ineverycrea-argentina
• linked-open-ipa
• open-data-risp
• proyectoapadrina
• red-uno-internacional-santillana
• rkb-explorer-webconf