A token without a $type is a rumor. Tools can't translate what they can't classify.
These four tokens have wrong types. Replace each with the correct W3C type.
Hint: lengths use `dimension`, not `size`. Font stacks use `fontFamily`. Time spans use `duration` and must include a unit (`ms` or `s`).
The spec lists each type's allowed value shape. Memorize the common ones; the rest are a tab away.