A single suggested term.
Each user input term of the search phrase
is being processed separately by the suggestion engine. For each
original term, a list of terms will be suggested, either completed terms,
corrected terms or even the exact term if it is known to the engine.
Each suggested term is represented by a instance of this class. The list of suggested terms
belonging to a single original term is represented by a instance of SuggestedTerms
The suggested term value can either be the completed version of the original term,
the corrected version of the original term or exactly the original term.