Lowest Level of Details

Hello All,

I have one planning area which containts 33 Characteristics.Can any one please let me know how to find the lowest level of details out of the above 33 characteristics combinations ?

For example out of these 33 characteristics, there could be some 7 characteristics which are at the most detailed or lowest level and my problem is how to find these 7 characteristics combinations ?

Thanks in advance !!

Regards,

Pawan.