User-agent: *

Disallow: /de/
Disallow: /data/
Disallow: /nl/
Disallow: /system/

User-agent: Yandex

Disallow: /de/
Disallow: /data/
Disallow: /nl/
Disallow: /system/

User-agent: Googlebot-Image

Disallow: /de/
Disallow: /nl/
Disallow: /data/
Disallow: /system/