<Li> Coteau des Prairies </Li> <Ul> <Li> East Tennessee </Li> <Li> Middle Tennessee </Li> <Li> West Tennessee </Li> </Ul> <Dl> <Dd> Other geographical distinctions: <Ul> <Li> Highland Rim </Li> <Li> Nashville Basin </Li> <Li> Tennessee Valley </Li> </Ul> </Dd> </Dl> <Dd> Other geographical distinctions: <Ul> <Li> Highland Rim </Li> <Li> Nashville Basin </Li> <Li> Tennessee Valley </Li> </Ul> </Dd>

What are the geographical regions of the united states