Question: In the governmental jurisdiction where the government includes the position Mayor of Houston, Texas, what tourist attractions are there?
Answer(s):
answer: Houston Zoo
answer: Lyndon B. Johnson Space Center
answer: USS Texas (BB-35)
answer: Toyota Center
answer: The Galleria
answer: Houston Arboretum and Nature Center
answer: Rothko Chapel
answer: Lakewood Church
answer: Sam Houston Race Park
answer: Children's Museum of Houston
answer: Bayou Bend Collection and Gardens
answer: Kemah Boardwalk
answer: George R. Brown Convention Center
answer: Wet'n'Wild SplashTown
answer: Gerald D. Hines Waterwall Park
answer: Houston Marathon
answer: Houston Museum of Natural Science
answer: Downtown Aquarium, Houston
answer: Museum of Fine Arts, Houston
answer: Hanna–Barbera Land
answer: Space Center Houston

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:government.governmental_jurisdiction.governing_officials ?k .
?k ns:government.government_position_held.office_position_or_title ns:m.0k1bm99 . 
?c ns:travel.travel_destination.tourist_attractions ?x .
}