Question: What was the total Scottish Government expenditure of 2013-01-09?
SPARQL:
select sum(xsd:decimal(?amount)) as ?sum from <http://linkedspending.aksw.org/scottish-spending-jan13> { ?obs qb:dataSet ls:scottish-spending-jan13. ?obs lso:scottish-spending-jan13-amount ?amount. ?obs lso:refDate ?date. filter(strstarts(str(?date), "2013-01-09")). }