Need Help to find the number of times a link has been shared in twitter

Dear All,

My Heartfelt thanks for all those, who try to help me solve this.

I have a data set from twitter space, the data set runs to around 15K rows, and there are around 25-30 URL's which has been re-tweeted, the objective for me is to find out how many such type of unique stories were present and how many times it has been re-tweeted.

Hope, I have made my point clear. Experts help is highly appreciated.

Thanks
Vijai