ca: {
      year: function(c) { return "any" + ((c !== 1) ? "s" : ""); },
      month: function(c) { return "mes" + ((c !== 1) ? "os" : ""); },
      week: function(c) { return "setman" + ((c !== 1) ? "es" :"a"); },
      day: function(c) { return "di" + ((c !== 1) ? "es" :"a"); },