First call with four arguments: No Defaults used

First Argument: Trinity
Second Argument: Father
Third Argument: Son
Fourth Argument: Holy Ghost

Second call with three arguments: One Default used

First Argument: Bible
Second Argument: Old Testament
Third Argument: New Testament
Fourth Argument: Lessons

Third call with two arguments: Two Defaults used

First Argument: Prophet
Second Argument: Moses
Third Argument: Video
Fourth Argument: Lessons

Fourth call with one argument: Three Defaults used

First Argument: About
Second Argument: XoaX.net
Third Argument: Video
Fourth Argument: Lessons