###Instruction: Multi-class classification, answer with one of the labels:['no_consensus', 'delete', 'keep', 'comment', 'merge', 'redirect'] : ###Input:  Q15123948: Security-evaluated operating system (Q15123948) : operating systems that have achieved certification from an external security-auditing organization : ( delete | history | links | entity usage | logs ) Merged with Q3509220 . Harold ( talk ) 14:03, 3 November 2013 (UTC)