Message

Every element in the currency collection MUST be a StringValueType.

Context
query:QueryRequest/query:Query/rim:Slot[@name='EstimatedValue']/rim:Slot[@name='Currency']/rim:SlotValue[@xsi:type='rim:CollectionValueType']/rim:Element
Test
@xsi:type = 'rim:StringValueType'
Usage
/ query:QueryRequest / query:Query / rim:Slot@name=EstimatedValue / rim:Slot@name=Currency / rim:SlotValue / rim:Element / @xsi:type