Add a stemmer for English

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Add a stemmer for English #2150

Closed nataliashitova closed 5 years ago

nataliashitova commented 5 years ago

Summary

This PR can be summarized in the following changelog entry:

[not-user-facing] Adds a stemmer function to the English morphology.

Relevant technical choices:

Test instructions

This PR can be tested by following these steps:

Try adding more cases to the functions' specs.

Fixes #2149

hansjovis commented 5 years ago

Acceptance test: ✅

Only word I tested that was not stemmed correctly was dormice. It was stemmed to dormice, instead of dormouse 😉. Will make an issue for adding it to the list of irregular nouns.