text: 'use strict';
  
  const groups = require('./groups');
  
  const groupsObject = {};
  groups.forEach((e) => {
    if (groupsObject[e.symbol]) {
      console.log('The symbol ' + e.symbol + ' is used more than once');
    }
    groupsObject[e.symbol] = e;
  });
  
  module.exports = groupsObject;
  