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

<https://w3id.org/framester/conceptnet5/data/en/natural_phenomenon>
<https://w3id.org/framester/conceptnet5/data/en/illumination>
<https://w3id.org/framester/conceptnet5/data/en/electrical_event>

risorse dalla linked data cloud