sql_cmd: SELECT firstname FROM customer WHERE firstname LIKE '%a%'
sql_result: '[(''François'',), (''František'',), (''Helena'',), (''Astrid'',), (''Daan'',),
  (''Kara'',), (''Eduardo'',), (''Alexandre'',), (''Fernanda'',), (''Mark'',), (''Frank'',),
  (''Jack'',), (''Dan'',), (''Kathy'',), (''Heather'',), (''Frank'',), (''Richard'',),
  (''Patrick'',), (''Julia'',), (''Edward'',), (''Martha'',), (''Aaron'',), (''Madalena'',),
  (''Hannah'',), (''Niklas'',), (''Camille'',), (''Marc'',), (''Wyatt'',), (''Isabelle'',),
  (''Ladislav'',), (''Lucas'',), (''Johannes'',), (''Stanisław'',), (''Joakim'',),
  (''Emma'',), (''Mark'',), (''Manoj'',), (''Puja'',)]'
table_info: "\nCREATE TABLE \"Customer\" (\n\t\"CustomerId\" INTEGER NOT NULL, \n\t\
  \"FirstName\" NVARCHAR(40) NOT NULL, \n\t\"LastName\" NVARCHAR(20) NOT NULL, \n\t\
  \"Company\" NVARCHAR(80), \n\t\"Address\" NVARCHAR(70), \n\t\"City\" NVARCHAR(40),\
  \ \n\t\"State\" NVARCHAR(40), \n\t\"Country\" NVARCHAR(40), \n\t\"PostalCode\" NVARCHAR(10),\
rtdocs_stable/api.python.langchain.com/en/stable/modules/chains/examples/sqlite.html