ref: 4e8494aad79a124f2b15ede9e7873fed46e1bb0a dir: /rc/bin/feminize/
#!/bin/sed -f s/ [aeiou]n([a-z][a-z][a-z])/ man\1/ s/ [a-z]em([a-z][a-z][a-z])/ fem\1/ s/ [aeiou]m/ fem/