$
   <cat> = PUNC.\n
# punctuation
''
   <cat> = PUNC.\n
# punctuation
(
   <cat> = PUNC.\n
# punctuation
#
   <cat> = PUNC.\n
# punctuation
)
   <cat> = PUNC.\n
# punctuation
,
   <cat> = PUNC.\n
# punctuation
.PP
   <cat> = PUNC.\n
# punctuation
:
   <cat> = PUNC.\n
# punctuation
CC
   <cat> = C.\n
# conjunction of coordination
CD
   <cat> = NUM.\n
# numeral determiners
DT
   <cat> = ART.\n
#  definite or indefinite determiner
EX
   <cat> = PRON.\n
# averbial pronoun (there)
FW
   <cat> = N.\n
# foreign word
IN
   <cat> = PREP.\n
# any preposition except to, up, out, back, away
JJ
   <cat> = A.\n
# adjective
JJR
   <cat> = A\n   <mode> = com.\n
# comparative adjective
JJS
   <cat> = A\n   <mode> = super.\n
# superlative adjective
LS
   <cat> = NUM.\n
# numbers, acronyms
MD
   <cat> = V\n   <ten> = present\n   <agr num> = sin.\n
# modal verb
NN
   <cat> = N\n   <agr num> = sin.\n
# noun sing
NNS
   <cat> = N\n   <agr num> = plu.\n
# noun plural
NP
   <cat> = Np\n   <agr num> = sin.\n
# proper noun sing
NPS
   <cat> = Np\n   <agr num> = plu.\n
# proper noun plural
PDT
   <cat> = ART.\n
#  pre-determiner (all, both)
POS
   <cat> = PUNC.\n
# quotes
PP
   <cat> = PRON.\n
# personal pronoun
PP$
   <cat> = PRON.\n
# possessive pronoun
RB
   <cat> = ADV.\n
# adverb
RBR
   <cat> = ADV\n   <mode> = com.\n
# comparative adverb (more less)
RBS
   <cat> = ADV\n   <mode> = super.\n
# superl. adverb (most)
RP
   <cat> = PREP.\n
# adverbial pre. (up, out, back, away)
SENT
   <cat> = Pf.\n
# end of sentence
SYM
   <cat> = PUNC.\n
# the closing ) for a symbol or an acronym
TO
   <cat> = TO.\n
# The preposition 
UH
   <cat> = ADV.\n
# adverb (Yes)
VB
   <cat> = V\n   <ten> = infinitive.\n
# verb infinitive
VBD
   <cat> = V\n   <ten> = preterite.\n
#
VBG
   <cat> = V\n   <ten> = gerund.\n
#
VBN
   <cat> = V\n   <ten> = pastParticiple.\n
#
VBP
   <cat> = V\n   <ten> = present\n   <agr num> = plu.\n
#
VBZ
   <cat> = V\n   <ten> = present\n   <agr num> = sin.\n
#
WDT
   <cat> = PRON.\n
# relative pronoun (which)
WP
   <cat> = PRON.\n
# relative pronoun (what)
WP$
   <cat> = PRON.\n
# relative pronoun (whose)
WRB
   <cat> = PRON.\n
# various pronouns and conjunctions  (where,how,when,why, etc.)
``
   <cat> = PUNC.\n
# punctuation
jj
   <cat> = A.\n
# ??? ten-year
Struct
   <cat> = Pf.\n
# a marker for the str. of the document
