ResultSet
result variable: property
size: 5
solution: ResultSolution
  binding: ResultBinding
    variable: property
    value: FN
solution: ResultSolution
  binding: ResultBinding
    variable: property
    value: age
solution: ResultSolution
  binding: ResultBinding
    variable: property
    value: http://www.w3.org/2001/vcard-rdf/3.0#N
solution: ResultSolution
  binding: ResultBinding
    variable: property
    value: TEL
solution: ResultSolution
  binding: ResultBinding
    variable: property
    value: TEL