city_city is the city name extracted from 'city'; city_addr1 is the city name extracted from 'addrline1'; city_addr2 is the city name extracted from 'addrline2'.
====Master Table====
To do:
a. Create a Master Table with the original features and (postcode, city, and state, coutry) summarized. Judge by myself
b. Finish by the end of the week (asap); inform Catherina after finished.
c. Postcode is the priority
====Issues====