# Note, tachyon, we need the /i modifier on each of these as well:
  my $job_desc = qr/\b national\s+security\s+adviser \s+/ix;
  my $title    = qr/\b (?:dr\.|doctor) \s+/ix;
  my $f_name   = qr/\b condoleeza \s+/ix;
  my $surname  = qr/\b rice \b/ix;
  my $repl     = 'condoleezarice';
  $text =~ s/# Zero-width assertion: One of the options must follow:
             (?= $job_desc | $title | $f_name )

             $job_desc ? # Option 1: job description
             $title    ? # Option 2: title
             $f_name   ? # Option 3: first name

             $surname    # Surname -- not optional
            /$repl/gx;