###Instruction: Multi-class classification, answer with one of the labels:['no_consensus', 'delete', 'keep', 'comment', 'merge', 'redirect'] : ###Input:  Q3589412: continuity equation (Q3589412) : equation constraining a quantity to flow only via adjacent locations; can express a locality principle : ( delete | history | links | entity usage | logs ) Merged with Q217219 . Debenben ( talk ) 21:07, 8 August 2014 (UTC)