Catching all questions that begin with WHO, WHAT, WHERE, and similar question words, and responding with the instruction to use commands, instead.

First, we create a single "[query]" token so that we can capture all instances of such sentences in a single line:

"Query"
Blank Room is a room.
Understand "who" or "what" or "when" or "where" or "why" or "how" or "who's" or "what's" or "when's" or "where's" or "why's" or "how's" as "[query]".
Understand "[query] [text]" as a mistake ("[story title] understands commands, such as '[command prompt]examine [a random thing that can be seen by the player]', but not questions. For more instructions, type HELP.").
Test me with "who am I? / who are you? / where is this place?".
Test me with "who am I? / who are you? / where is this place?".
Blank Room

>(Testing.)

>[1] who am i?
Query understands commands, such as ">examine yourself", but not questions. For more instructions, type HELP.

>[2] who are you?
Query understands commands, such as ">examine yourself", but not questions. For more instructions, type HELP.

>[3] where is this place?
Query understands commands, such as ">examine yourself", but not questions. For more instructions, type HELP.

Now the game will respond to all questions novice players might type with this reminder to look for help information.