Just select a VCF file!

VCF files can be converted to JSON-LD and Nquads format
After parsing, there will be a vcf object "vcfJsonLd" avaliable
Just Open the Developer Console if you want to take a look at them.

Penha EDS, E Iriabho, A Dussaq, DM de Oliveira, JS Almeida (2017) Isomorphic semantic mapping of variant call format (VCF2RDF). Bioinformatics 33(4):547-548 [PMID:27797761].[source code],