instruction:
In this task, you are given a country name, and you need to return the year in which the country became independent. Independence is a nation's independence or statehood, usually after ceasing to be a group or part of another nation or state, or more rarely after the end of military occupation.
question:
Sierra Leone
answer:
1961


question:
Barbados
answer:
1966


question:
Burkina Faso
answer:

1960