http://dbpedia.org/resource/William_Whitelaw,_1st_Viscount_Whitelaw__Tenure__9 <http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#TimeInterval>
xsd:date
1972-04-07
xsd:string
Leader of the House of Commons
xsd:date
1970-06-20