en/ADV: PronType details: add "wherever" examples (#517)

_en/pos/ADV.md

@@ -16,16 +16,19 @@ WH Lemma | `PronType`
 ------|-----------
 _how_, _why_ | `PronType=Int` or `PronType=Rel`
 _when_, _where_, _whither_ | `PronType=Dem` or `PronType=Int` or `PronType=Rel`
-_whenever_, _wherever_ | `PronType=Dem` or `PronType=Rel`
+_whenever_, _wherever_ | `PronType=Int` or `PronType=Rel`
 _wherein_ | `PronType=Rel`
 
 [PronType]()=`Rel` applies when these trigger a relative construction—see [acl:relcl]() for details.
 When they are interrogative, they receive `PronType=Int`. When they simply help specify a place or time, they are `PronType=Dem`.
 For example:
 
 WH Lemma | `PronType=Dem` | `PronType=Int` | `PronType=Rel`
----------|----------------|----------------|---------------
-_when_   | _<b>When</b> the clock struck twelve, the spell wore off._ | _<b>When</b> did the spell wear off?_ | _the moment <b>when</b> the clock strikes twelve_
+---------|       :--:     |     :----:     |    :---:     
+_when_   | _<b>When</b> the clock struck twelve, the spell wore off._ | _<b>When</b> did the spell wear off?_ | _the moment <b>when</b> the clock struck twelve_
+_wherever_ | -- | _<b>Wherever</b> he lives, I won't rest until I find him._[^1] | _<b>Wherever</b> you see a stain, apply a dab of cleaner._
+
+[^1]: This is a special type of interrogative clause known as an _exhaustive conditional adjunct_ (*CGEL* pp. 761–764). In this construction the interrogative _WH-ever_ word alternates with _no matter WH_ or _regardless of WH_ (_No matter where he lives..._).
 
 Non-WH lemmas are less ambiguous: