Question: Which teams has Steve Nash played for that has a forward-center position?
Answer(s):
answer: Dallas Mavericks
answer: Phoenix Suns

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.01yqrk)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.01yqrk ns:sports.pro_athlete.teams ?y .
?y ns:sports.sports_team_roster.team ?x .
?x ns:sports.sports_team.roster ?c .
?c ns:sports.sports_team_roster.position ns:m.0ctt4z . 
}