echo - Introduce Sentence splitter
! And compose Whitespace ignorance

read regex Token .o. [
  ! Put a Token boundary behind the longest possible
  ! sentence ending punctuation sequence,
  ! that isn't followed by a comma
  SentenceEnd @-> ... NLout \/ _ NLout \%,
] .o. [
  ! Put a Token boundary behind a punctuation                      
  ! that is not a start of a punctuation sequence
  SP @-> ... NLout \/ NLout _ NLout NotSentenceExtension
] .o. [
  ! Put a Token boundary behind ... if not followed by a small character
  [%. %. %.] @-> ... NLout \/ _ NLout WS+ NotSmallCaps
] .o. [
  ! Remove whitespace between Tokens
  [WS|NL]+ @-> 0 || [ .#. | NLout ] _
];