Question: When did London get Nominet Trust funding?
SPARQL:
select distinct(?date) from <http://linkedspending.aksw.org/nominettrust_funding> { ?obs qb:dataSet ls:nominettrust_funding. ?obs lso:nominettrust_funding-region <https://openspending.org/nominettrust_funding/region/london>. ?obs lso:refDate ?date. }