###Instruction: Multi-class classification, answer with one of the labels:['no_consensus', 'delete', 'keep', 'comment', 'merge', 'redirect'] : ###Input:  Q5671431: chorionic villus sampling (Q5671431) : form of prenatal diagnosis : ( delete | history | links | entity usage | logs ) Empty item Mahdy Saffar ( talk ) 17:10, 20 September 2015 (UTC)