Simplifying to refactor unnecessary simpleTypes.
Simplifying to refactor unnecessary simpleTypes.

wastemobile/HTMLBook,oreillymedia/HTMLBook,gitenberg-dev/HTMLBook,macmillanpublishers/HTMLBook,macmillanpublishers/HTMLBook,mushroomgithub/HTMLBook,wastemobile/HTMLBook,gitenberg-dev/HTMLBook,oreillymedia/HTMLBook,macmillanpublishers/HTMLBook,oreillymedia/HTMLBook,mushroomgithub/HTMLBook,gitenberg-dev/HTMLBook,mushroomgithub/HTMLBook