Validating continents

Your colleague has informed you that the data on unemployment from countries in Oceania is not reliable, and you'd like to identify and exclude these countries from your unemployment data. The .isin() function can help with that!

Your task is to use .isin() to identify countries that are not in Oceania. These countries should return True while countries in Oceania should return False. This will set you up to use the results of .isin() to quickly filter out Oceania countries using Boolean indexing.

The unemployment DataFrame is available, and pandas has been imported as pd.