perl poem.pl

##</code><code>##

Can't exec Ambiguity! at poem.pl line 1.

##</code><code>##

       If the #! line does not contain the word "perl", the
       program named after the #! is executed instead of the Perl
       interpreter.  This is slightly bizarre, but it helps
       people on machines that don't do #!, because they can tell
       a program that their SHELL is /usr/bin/perl, and Perl will
       then dispatch the program to the correct interpreter for
       them.