Pretty much like every other adventure game you've ever played. Sentences can be a lot more complex than the traditional 'TAKE AXE'..., for example: put the pestle from the vessel in the chalice from the palace pick up the letter and read it open the letter box and take the letter and open the letter and read it please suggest any general grammatical structures that you find missing...
There's no semantic processing yet, but the syntax analysis is not too bad. Peek inside at the grammar if you're having trouble guessing suitable words to use. If you've ever played ADVENT or DUNGEON you'll probably guess a few. TO DO: wildcards, for witty responses when asked to do something impossible; dictionary list of valid words (tagged by p.o.s.); to do: draw parse tree to do: exit though the window jump out the window go out the window climb up/climb out/climb out the window go down into the cellar go up to the attic upstairs/downstairs ask the pirate to ... tell the troll to ... go in/go out/go outside walk walk out/fly out/run away/flee what/where is this? what can i/you see? ask the <x> to find/steal the <x> lift carpet crawl under ... feed the ... (with the ...)? feed the ... to the ,,, fetch my ... take a match from/out of the matchbox light the candle with the match talk to the troll examine room kill gobo with knife