https://opennlp.apache.org/docs/2.5.4/apidocs/opennlp-tools/opennlp/tools/util/normalizer/TwitterCharSequenceNormalizer.html
TwitterCharSequenceNormalizer (Apache OpenNLP Tools 2.5.4 API)
declaration: package: opennlp.tools.util.normalizer, class: TwitterCharSequenceNormalizer
apache opennlptoolsapi