correct curies in ttl

[VladimirAlexiev]

<kvin:value> is a URI in a new illegal scheme kvin:. kvin:value is a proper curie (prefixed name)

[kenwenzel]

Hi @VladimirAlexiev,

thank you for this PR and the proposal to use prefixed names.
The point is that we currently use the unofficial "kvin:" scheme for representing value, time, op and other properties.
Is it illegal from your point of view to use this scheme or is it just a bit uncommon?

Best regards
Ken

[VladimirAlexiev]

It is illegal. URI schemes are registered with IANA

[kenwenzel]

@VladimirAlexiev Would you please open an issue for this? The scheme is currently used throughout the project.
Do you see an alternative like using the tag scheme https://en.wikipedia.org/wiki/Tag_URI_scheme or just a usual URL like http://linkedfactory.github.io/vocab/kvin/ ?

BTW, there are also some other custom URI schemes:
https://en.wikipedia.org/wiki/List_of_URI_schemes