Hello-Goodbye: 32 distinct words
 40 say
 32 i
 31 hello
 31 zz_words
 20 you
 16 why
 15 goodbye
 10 dont
 10 hela
 10 know
  9 heba
  9 helloa
  7 go
  7 no
  6 and
  6 oh
  3 yes
  2 bye
  2 stop
  1 but
  1 can
  1 do
  1 hellowow
  1 high
  1 its
  1 low
  1 may
  1 mean
  1 stay
  1 still
  1 time
  1 to