Wow. Can you tell me more about this topic? 
 Some of St. Louis's biggest Fortune 500 companies include: Express Scripts, Emerson Electric, Monsanto, Reinsurance Group of America, Centene, Graybar Electric, and Edward Jones Investments. 
 No problem. That's interesting. Are there other forms of transportation? 
 Thanks. I'd like to learn about its transportation and economy. 
 No problem. Thanks for all the great facts!
Some of St. Louis's biggest Fortune 500 companies include: Express Scripts, Emerson Electric, Monsanto, Reinsurance Group of America, Centene, Graybar Electric, and Edward Jones Investments.