Question: In which years did the Uganda budget contain money for Education?
SPARQL:
select distinct(year(?year)) as ?year from <http://linkedspending.aksw.org/ug_budget_subcategories> { ?obs qb:dataSet ls:ug_budget_subcategories. ?obs lso:ug_budget_subcategories-to <https://openspending.org/ug_budget_subcategories/to/education>. ?obs lso:ug_budget_subcategories-amount ?amount. ?obs lso:refYear ?year. }