[web-annotation] Issue: How is language assigned to an annotation? marked as i18n-review

r12a has just labeled an issue for 
https://github.com/w3c/web-annotation as "i18n-review":

== How is language assigned to an annotation? ==
[raised by r12a, not yet discussed by the i18n WG]

3.2.1 External Web Resources
https://www.w3.org/TR/annotation-model/#external-web-resources

How is language information added to an annotation?  Is the person 
creating the annotation expected to add it, or is it automatically 
picked up by the annotation?

(The same question could be raised for direction information, if that 
is added to the model.)

See https://github.com/w3c/web-annotation/issues/218