###Instruction: Multi-class classification, answer with one of the labels:['no_consensus', 'delete', 'keep', 'comment', 'merge', 'redirect'] : ###Input:  Q4639791: 503 BC (Q4639791) : year : ( delete | history | links | entity usage | logs ) Empty; merge to Q240848 Joe Decker ( talk ) 23:45, 3 March 2013 (UTC)