Returns the value of the specified property for the originating node of the function. When using a function such as HasChildWith, the originating node can be referenced inside that function by using the ParentPropValue function. However, when using a function such as HasSiblingWith or NumDescendantsWith, the OrigPropValue function must be used.
OrigPropValue(PropAbbrev: String): String
HasSiblingWith(GreaterThan(OrigPropValue(ID),ID())
If the current node's ID is 200 and it has any siblings with a node ID greater than 200, then the return value is True.