+ - Change the XCQL output to include the nasty and redundant
+ (but official) <leftOperand> and <rightOperand> wrapper
+ elements.
+ - Change the XCQL output to use the nasty (but official)
+ rendition of prefix-mapping: a <prefixes> element,
+ containing one of more <prefix>es may appear at the top
+ level of either a <searchClause> or a <triple>.