SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/WTA_Tour_Championships> <http://dbpedia.org/property/country> ?uri }
Which nation hosts the WTA Tour Championships?
SELECT DISTINCT ?k WHERE { resource:W_T_A_Tour_Championships property:country ?k }
Singapore
The country of WTA Tour Championships is [Singapore].
The host country of the WTA Tour Championship is [Singapore].