Question: How much money does Wandsworth spendt on general internal repairs?
SPARQL:
 select sum(xsd:decimal(?amount)) as ?result from <http://linkedspending.aksw.org/wandsworthspending_2013> { ?obs qb:dataSet ls:wandsworthspending_2013. ?obs lso:wandsworthspending_2013-DetailedExpenses "GENERAL INTERNAL REPAIRS". ?obs lso:wandsworthspending_2013-amount ?amount. }