Reproducing the results of a research paper

i need help, i wanted to implement the following paper by Teddy Cunningham, Real-World “Trajectory Sharing with Local Differential Privacy” [], it uses n-gram for its implementation.however, i am clueless as to begin from where. i googled soo long for the original code, but i am not able to find it. i also mailed the authors, and they haven’t replied to me yet.

If anyone of you know or have the code to reproduce the above said paper, i will be eternally grateful.!!

Thanking you in advance!