The word "Wellington" is a common English word. It likely entered my training data because it is a prominent name:
* Arthur Wellesley, Duke of Wellington: A famous British military leader who defeated Napoleon at the Battle of Waterloo.
* Wellington, New Zealand: The capital city of New Zealand, named after the Duke.
The word "Wellington" is also used in other contexts, such as:
* Wellington boots: A type of rubber boot often worn in wet weather, named after the Duke.
* Wellington, Florida: A city in Florida, USA.
These are just a few examples. The word "Wellington" likely appears in a variety of contexts within my training data, which is why I recognize and can use it.