###Instruction: Multi-class classification, answer with one of the labels:['no_consensus', 'delete', 'keep', 'comment', 'merge', 'redirect'] : ###Input:  Q12415815: electron hole (Q12415815) : conceptual and mathematical opposite of an electron : ( delete | history | links | entity usage | logs ) Merged with Q651050 . ☆★ Sanjeev Kumar ( talk ) 22:59, 27 June 2014 (UTC)