User-agent: Yandex
Disallow: /index.php?productID=*&discuss=yes
Disallow: /index.php?discuss=yes&productID=*
Disallow: /index.php?categoryid=*
Host: www.activerest.ru

User-Agent: *
Disallow: /index.php?productID=*&discuss=yes
Disallow: /index.php?discuss=yes&productID=*
Disallow: /index.php?categoryid=*
Host: www.activerest.ru