This container represents a list of suggested terms, all belonging to a
particular single original term of the users input search phrase.
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 they are known to the engine as they are.
A instance of this class refers to the original unmodified term, as well as
to a list of
SuggestedTerms objects representing a single suggested term.