@prefix roman: .
@prefix rs: .
@prefix rdf: .
[] rdf:type rs:ResultSet ;
rs:resultVariable "legion" ;
rs:resultVariable "n" ;
rs:solution [ rs:binding [ rs:value roman:TwentyFirstLegion ;
rs:variable "legion"
] ;
rs:binding [ rs:value "XXI"^^roman:Numeral ;
rs:variable "n"
]
] .