<https://welti-art.ch/#/schema/person/71778d94236173febc2e248b421243fd>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://welti-art.ch/1999-mostra-della-pietra-lavorata-ottava-edizione-strada-in-casentino-arezzo/>