This is Perl module Lingua::AIN::Romanize.

INSTALLATION

Lingua::AIN::Romanize installation is straightforward. If your CPAN shell is set up,
you should just be able to do

    % cpan Lingua::AIN::Romanize

Download it, unpack it, then build it as per the usual:

    % perl Makefile.PL
    % make && make test

Then install it:

    % make install

DOCUMENTATION

Lingua::AIN::Romanize documentation is available as in POD. So you can do:

    % perldoc Lingua::AIN::Romanize

to read the documentation online with your favorite pager.

OHTSUKA Ko-hei