def transform(self, essence_col, next_col):
derived_col = dict(essence_col)
derived_col['Year'] = \
Container.convertStandardDateToYear(essence_col['Date'])
derived_col['YearMonth'] = \
Container.convertStandardDateToYearMonth(essence_col['Date'])
derived_col['SimplifiedAlias'], \
derived_col['Account'], \
derived_col['Category'], \
derived_col['Subcategory'] = \
self.processAccountAlias(essence_col['AccountAlias'])
return True, derived_col
