Consider the following Perl 6 program...

Suppose we have an input file containing email addresses and names:

pmichaud@pobox.com      Patrick R. Michaud
allison@parrot.org      Allison Randal
jnthn@jnthn.net         Jonathan Worthington
larry@wall.org          Larry Wall
jesse@fsck.org          Jesse Vincent
audreyt@audreyt.org     Audrey Tang

What will the following do?