code: private List<String> pruneSuggestions(final List<String> suggestions) {
        List<String> prunedSuggestions = new ArrayList<>(suggestions.size());
        for (final String suggestion : suggestions) {
          if (suggestion.indexOf(' ') == -1) {
            prunedSuggestions.add(suggestion);
          } else {
            String[] complexSug = suggestion.split(" ");
            if (!bannedSuffixes.contains(complexSug[1])) {
              prunedSuggestions.add(suggestion);
            }
          }
        }
        return prunedSuggestions;
      }
docs: Remove suggestions -- not really runon words using a list of non-word suffixes
  @return A list of pruned suggestions.