machine_question: what is the name of the the artist aword nominated for steelers head coach
question: What is the name of the person nominated for an award as Steelers Head Coach?
sparql: 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:award.award_nominee.award_nominations ?k .
  ?k ns:award.award_nomination.nominated_for ns:m.0yytbb_ . 
  ?c ns:american_football.football_team.current_head_coach ?x .
  }
  
webqsp_question: what is the name of the pittsburgh steelers head coach