###Instruction: Multi-class classification, answer with one of the labels:['no_consensus', 'delete', 'keep', 'comment', 'merge', 'redirect'] : ###Input:  Q19136028: GNU Free Documentation License (Q19136028) : copyleft license primarily for free software documentation : ( delete | history | links | entity usage | logs | discussion ) Duplicate, empty
of GNU Free Documentation License (Q22169) I think. -- Valerio Bozzolan ( talk ) 16:52, 17 December 2016 (UTC)