separator = separator.replaceAll("\\\\t", "\t");
separator = separator.replaceAll("\\\\n", "\n");
sourceAlgorithm = new SeparatorMergeAlgorithm(separator);
}
} else if (cls.equals("trim")) {
sourceAlgorithm = new TrimCleanAlgorithm();
} else if (cls.equals("lowercase")) {
sourceAlgorithm = new LowercaseCleanAlgorithm();
} else if (cls.equals("filter-non-words")) {
sourceAlgorithm = new FilterNonWordsCleanAlgorithm();
} else if (cls.equals("unify-rare-words")) {