AnnotatedPlainTextDocument
                        Annotated Plain Text Documents
Annotation              Annotation objects
Annotator               Annotator (pipeline) objects
CoNLLTextDocument       CoNLL-Style Text Documents
Penn_Treebank_POS_tags
                        NLP Tag Sets
Regexp_Tokenizer        Regexp tokenizers
Simple_Para_Token_Annotator
                        Simple annotator generators
Span                    Span objects
Span_Tokenizer          Tokenizer objects
String                  String objects
TaggedTextDocument      POS-Tagged Word Text Documents
Tagged_Token            Tagged_Token objects
TextDocument            Text Documents
Tree                    Tree objects
WordListDocument        Word List Text Documents
annotate                Annotate text strings
annotations_in_spans    Annotations contained in character spans
content                 Access or Modify Content or Metadata
next_id                 Annotation Utilities
ngrams                  Compute N-Grams
parse_IETF_language_tag
                        Parse IETF Language Tag
parse_ISO_8601_datetime
                        Parse ISO 8601 Date/Time Strings
sents                   Text Document Viewers
