Sorting a column in this scenario

Hi,

I need to sort the 3rd column in ascending order , each and every column are seperated by ~.

sample input file :

2~Lead Time Metrics~jennife1
2~Lead Time Metrics~mmullis
2~Lead Time Metrics~lisah
2~Lead Time Metrics~pros
2~Lead Time Metrics~kenward

can any one help me out .

i gave sort +3 -r input.lst >> output.lst

Thanks,
Mohana Krishnan

sort -t '~' +2 -r input.lst >> output.lst