https://w3id.org/framester/conceptnet5/data/en/ancient_rome.n

<https://w3id.org/framester/conceptnet5/data/en/rome>
<https://w3id.org/framester/conceptnet5/data/en/civilization>
<https://w3id.org/framester/conceptnet5/data/en/roman_empire>

risorse dalla linked data cloud