https://w3id.org/framester/conceptnet5/data/en/boundary_line

<https://w3id.org/framester/conceptnet5/data/en/border>
<https://w3id.org/framester/conceptnet5/data/en/boundary>
<https://w3id.org/framester/conceptnet5/data/en/unnatural_thing>

risorse dalla linked data cloud