Yep, and the example I like to go back to is API docs, or command line docs. One I was reading this week had a field for "language", but doesn't clue you in to

Yep, and the example I like to go back to is API docs, or command line docs. One I was reading this week had a field for "language", but doesn't clue you in to the valid values by providing a working example. English for example could be: English English (US) en en-US eng 1033 409 ...And that's just for the US dialect of English. And also doesn't tell you if any of this is case-sensitive or not! Sometimes yes, sometimes no.