In this task, you are given a country name and you need to return the Top Level Domain (TLD) of the given country. The TLD is the part that follows immediately after the "dot" symbol in a website's address. The output, TLD is represented by a ".", followed by the domain.

Example Input: Saudi Arabia
Example Output: .sa

Example Input: Trinidad and Tobago
Example Output: .tt

Example Input: Nicaragua
Example Output:
.ni

