SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Al_Gore_presidential_campaign,_2000> <http://dbpedia.org/ontology/incumbent> ?uri }
Who is the incumbent of Al Gore presidential campaign of 2000 ?
SELECT DISTINCT ?h WHERE { resource:Al_Gore_presidential_campaign,_2000 property:incumbent ?h }
Bill Clinton
[Bill Clinton] is the incumbent of Al Gore presidential campaign 2000.
[Bill Clinton] is the office holder of Al Gore's 2000 presidential campaign.
[Bill Clinton] is the incumbent of the person presidential campaign, 2000 .
[Bill Clinton] was the start of the 2000 presidential campaign.