default List<StemList> stem(String input, LinguisticsParameters parameters) {
        return stem(input, parameters.language(), parameters.stemMode(), parameters.removeAccents());
    }
Stems the given input.

@return the stems for each segment of the input. Each segment is an entry in the outer list,
        where that entry contains the possible stems of that segment. For most text there
        will be a single entry in the returned list, containing either a single stem
        or (if given StemMode.ALL), multiple alternative stems.
linguistics/src/main/java/com/yahoo/language/process/Stemmer.java