Definition: Compose a new way to ask the same question. The new question must be asking the exact same thing as the original question does. Without any other information, you should be able to tell that the original question and the new question are the same. Preserve bracketed phrases in your new question. You can change the rest of the question provided the above requirements are satisfied. The new question must have a natural, fluent formulation, as if it were composed by a native English speaker. You will be given three pieces of information to help you create better questions. Those are: "Answer": the answer to the question, e.g., "Honolulu". "Answer Type": the type of the answer, e.g., "Location". "Auxiliary Information" is a detailed description of some concepts mentioned in the question, if any.
Input: original question: What is the calendar system directionality for [Greyhawk Calendar]?
answer: forward
answer type: Calendar System Directionality.
auxiliary information: The Greyhawk Calendar is a fictional calendar used in the World of Greyhawk campaign setting for the Dungeons and Dragons role-playing game. It is the most common system for tracking the days and months of the Common Year in the Flanaess. The Greyhawk year consists of 364 days, split into twelve months of twenty-eight days each, and four seven-day festivals, each placed at three-month intervals. Different cultures in the campaign setting have their own names for the months and festivals. The months and festivals are commonly referred to as the Dozenmonth of Luna and the Four Festivals. Days in Greyhawk are reckoned in weeks of seven days each. The days of the month are: Starday, Sunday, Moonday, Godsday, Waterday, Earthday, and Freeday. Godsday is commonly associated with worship, and Freeday with rest. The remaining days are considered "work days." An interesting feature of the Greyhawk calendar is that the days of the week always occur on the same day every year, a result of the year having a number of days divisible by seven. The first of the month is always a Starday, and the rest follow as shown below: Starday is always on the 1st, 8th, 15th, and 22nd of the month.

The [Greyhawk Calendar] uses what directionality for it's calendar system?