ref: a4313f26facb302a3089d98f158ccd248ce734db dir: /rc/bin/feminize/
#!/bin/rc exec sed '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/;'