Translates the input of an operation that modifies the query its input translates into, or the root operation.
The input stays in that query when SPARQL applies it before the modifying operation,
otherwise it is translated in a subquery of its own.
Param: op
the input of the modifying operation, or the root operation.
Param: modifierType
the type of the modifying operation, undefined for the root operation.
Translates the input of an operation that modifies the query its input translates into, or the root operation. The input stays in that query when SPARQL applies it before the modifying operation, otherwise it is translated in a subquery of its own.