Ah, so an area auch that the woods exclude the lake, parking lot, softball field?

You create the multipolygon, then the property of the multipolygon would be woods, with the role set to "outer".  Then you add the lake, parking lot, etc. To the relation, and set the role as "inner".  

Finally, for the origianl woods area, you remove all but the area=yes tag since you don't want double tagging due to the relation.

Hope that helps.  I can take a look once you add it, or go ahead and do it and you can then inspect to understand.  Multipolygons are weird the first few times.  :)