| Provider Name | Provider Code | URI |
|---|---|---|
| Backus-Naur form | bnf |
https://www.w3.org/2000/10/swap/grammar/bnf#canStartWith |
| Backus-Naur form (RDF) | rdf |
https://www.w3.org/2000/10/swap/grammar/bnf#canStartWith |
| Bioregistry | bioregistry |
https://bioregistry.io/bnf:canStartWith |