anchor.diff:  import 'dart:convert';
   
   import 'package:polymer/polymer.dart';
  +import 'package:core_elements/core_selector.dart';
   
   import 'package:charted/charted.dart';
   
  
positive.code:       });
        tranches.add(well_formated);
      });
  
      Iterable ORDINAL_DATA = [
        [tranches[2]["name"], tranches[2]["q2a"], tranches[2]["q2b"], tranches[2]["q2c"], tranches[2]["q2d"], tranches[2]["q2e"]],
  
negative.code:       }
      });
  
      Iterable ODC = [
        new ChartColumnSpec(label: "City", type: ChartColumnSpec.TYPE_STRING),
        new ChartColumnSpec(label: "q1a"),
  