小编NAS*_*RIN的帖子

我写了这个查询并返回夫妻和特定条件的列表.(在http://live.dbpedia.org/sparql中)

SELECT DISTINCT ?actor ?person2 ?cnt
WHERE
{
{
    select DISTINCT ?actor ?person2 (count (?film) as ?cnt) 
    where { 
        ?film    dbo:starring ?actor .
        ?actor dbo:spouse ?person2. 
        ?film    dbo:starring ?person2.
    }
    order by ?actor
}
FILTER (?cnt >9)
}

问题是某些行是重复的.例:

http://dbpedia.org/resource/George_Burns http://dbpedia.org/resource/Gracie_Allen 12

http://dbpedia.org/resource/Gracie_Allen http://dbpedia.org/resource/George_Burns 12

如何删除这些重复？我将性别添加到？actor但它会损害当前结果.