Hi. Could you tell me about St. Louis.? 
 Sure! St. Louis is a large major city in the U.S. state of Missouri. Its by the Mississippi River. 
 Thanks. I'd like to learn about its transportation and economy. 
 Well, the St. Louis Metropolitan Area has 10 Fortune 500 companies, the 7th largest Fortune 500 city in the U.S. 
 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. 
 Thanks. That's a lot! Do you have information about the tourism? 
 I'm sorry, I don't have any information about tourism in St. Louis, but I can tell you about their transportation. The Terminal Railroad Association of st. Louis is a switching and terminal railroad jointly owned by all the major rail carriers in St. Louis. 
 No problem. That's interesting. Are there other forms of transportation? 
 Yes. River transportation is available through the Port of St. Louis, which is 19.3 miles of riverbank on the Mississippi River that handles more than 32 million tons of freight annually. 
 That's cool. What is the population of St. Louis? 
 I'm sorry, I do not know the population of St. Louis. But I can tell you that St. Louis is known for the Gateway Arch, the tallest monument constructed in the U.S. at 630ft. 
 No problem. Thanks for all the great facts! 
 You're welcome!
St. Louis