GRAAL Conditions:
These are the conditions that can be used in the ACTION, DACT, LACT, and
LINE statements.
IFOBJ / IFOBJ2 Test objects in the input sentence
IFOF / IFOF2 Test object flags
IFROOM Test current room
IFRF Test room flags
IFCARR / IFNOTCARR Test if object is in inventory
IFPICK Test if object can be picked up
IFTYPE Test object types
IFSPOS Test room starting position
IFCIMG Test current character image
IFFLOOR Test the current floor
IFDATE Test the date
IFTIME Test the time
IFWEEKDAY Test the day of the week
IFNOTSAVEDISK Test if the saved games disk is present
IFEXISTS Test if a certain saved game exists
IFCHAR Test the currently controlled character
IFHERE Test if an object is in the current room
IFVAR Test the contents of a string variable