[type] This field is a repeating element for each type of unit selected in the UnitType field. For every UnitType there are two possible implementations. For a flat implementation (RETS 1.x only), each UnitTypeType used is expected to appear as the "[type]" in the related rooms field name. i.e. UnitTypeStudioActualRent. A relational implementation of UnitType must omit the type from the field name and use UnitTypeType to create a vertical representation of the various rooms. i.e. UnitTypeActualRent with Studio in the relational table's UnitType field.