###Instruction: Multi-class classification, answer with one of the labels:['no_consensus', 'delete', 'keep', 'comment', 'merge', 'redirect'] : ###Input:  Q15726019: norbornene (Q15726019) : unsaturated, bicyclic hydrogencarbon : ( delete | history | links | entity usage | logs ) Merged with Q420176 . BattlePeasant ( talk ) 03:25, 14 February 2014 (UTC)