jenv-bw2-i:SocialSecurityContributions jenv-bw2-i:SocialSecurityContributions urn:cbs:linkrole:ps-is-personnel-costs-social-security-contributions http://www.xbrl.org/2003/arcrole/parent-child child jenv-bw2-i:SocialSecurityContributions urn:cbs:linkrole:ps-is-personnel-costs-social-security-contributions http://www.xbrl.org/2003/arcrole/parent-child child