Scratch

I would like to make a text based game like the once popular "The Lurking Horror" video game which was complete out of text, you put in "go left" and it would have an output of it saying "You arrive to a.." (insert random place/object here) "And you notice a monster." and you could even type "lick monster" or "run from monster" and it would put a consequence to whatever you did in the output.

Anyways, back on topic, I would like to make a game similar to that, in which it uses a predefined word choice on which the user could type something in, and the computer would recognize a small phrase of the sentence.

Any suggestions on how to do it?

Extra links/info:

Lurking Horror (browser version): http://pot.home.xs4all.nl/infocom/lurking.html

Skype (most likely on): Pfctink

Xfire: Pfctink