Catarina de Albuquerque, UN Special Rapporteur on the Human Right to Safe Drinking Water and Sanitation - See more at: http://sanitationandwaterforall.org/priority-areas/political-prioritization/2014-hlm#sthash.NfdlujZB.dpuf
5. How to measure the elimination of inequalities?
The systematic reduction and elimination of the inequalities between
different population groups as they progress toward the specified target.