Question: Who was the executive producer of Rules of Engagement and 2013 Virginia Senator?
Answer(s):
answer: Jim Webb

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ns:m.07z1m ns:government.political_district.representatives ?y .
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EXISTS {?y ns:government.government_position_held.to ?sk3 . 
FILTER(xsd:datetime(?sk3) >= "2013-01-01"^^xsd:dateTime) })
?x ns:film.producer.films_executive_produced ns:m.04gknr . 
}