anchor.diff:  abacus,,P
   Abadan,,P
   aba,,P
  -abasia,,@b'eIZ@
  +abasia,,@b'eIzi:@
   abatises,,P
   abatjour,,P
   abattoir,,'ab@twAr
  
positive.code: maltose,,P
  maltster,,m'O:ltst@`
  mamey,,mam'i:
  mamma,,P
  mammillary,,m'amI#lEri:
  mammogram,,B
  
negative.code: nutrition,,nU:tr'IS@n
  nutritious,,nU:tr'IS@s
  nutritive,,n'U:trItIv
  nyctalopia,,nIkt@l'oUpi:@
  nyctitropism,,P
  Nyeman,,nj'Em@n
  Nyerere,,D
  