region                      group a         group b                   group c              group d          group e              group f
0       1  maine new hampshire vermont   massachusetts  connecticut rhode island  delaware new jersey         new york         pennsylvania
1       2                     maryland   west virginia                  missouri              indiana         kentucky            tennessee
2       3                         ohio        illinois                  michigan            wisconsin             iowa            minnesota
3       4                        texas       louisiana         arkansas oklahoma             colorado  kansas nebraska   arizona new mexico
4       5                     virginia  north carolina            south carolina              florida          georgia  mississippi alabama

Table as JSON:
{"region":{"0":1,"1":2,"2":3,"3":4,"4":5},"group a":{"0":"maine new hampshire vermont","1":"maryland","2":"ohio","3":"texas","4":"virginia"},"group b":{"0":"massachusetts","1":"west virginia","2":"illinois","3":"louisiana","4":"north carolina"},"group c":{"0":"connecticut rhode island","1":"missouri","2":"michigan","3":"arkansas oklahoma","4":"south carolina"},"group d":{"0":"delaware new jersey","1":"indiana","2":"wisconsin","3":"colorado","4":"florida"},"group e":{"0":"new york","1":"kentucky","2":"iowa","3":"kansas nebraska","4":"georgia"},"group f":{"0":"pennsylvania","1":"tennessee","2":"minnesota","3":"arizona new mexico","4":"mississippi alabama"}}