User-agent: *
Disallow: /page2_3.php
Disallow: /page2_4.php
Disallow: /page2_5.php
Disallow: /page3_4.php
Disallow: /page3_5.php
Disallow: /page4_2.php
Disallow: /page5_4.php
Disallow: /page5_5.php