Question: How much did the Town of Cary earn in 2010?
SPARQL:
 select sum(xsd:decimal(?amount)) as ?result from <http://linkedspending.aksw.org/town_of_cary_revenues> { ?obs qb:dataSet ls:town_of_cary_revenues. ?obs lso:refYear ?year. filter(year(?year)=2010). ?obs lso:town_of_cary_revenues-amount ?amount. }