Use language tags in labels and comments
**Affects:** SAREF and its extensions
**Situation:** this is a best practice, and translations in other languages may be provided in the future
**Proposal:** To use language tags @en instead of the xsd:string datatype for all labels and comments.
**Status:** agreed during SmartM2M-RG Meeting about 2 NWIs SAREFv3 and SAREF Com Framework V2 2019-04-08
issue