Replaces the previous behavior of returning unknown-noun. The dispatcher
will use this in the next commit to prompt the player to disambiguate.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Allows `look at lamp`, `examine the letter`, `take a key`, `take an oil lamp`.
Stop-words are only removed from the head of the noun phrase, not from
anywhere in the middle.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>