This is how stemming and lemmatization work, to reduce inflectional forms and sometimes derivationally related forms of a word to a common base form. https://nlp.stanford.edu/IR-book/html/htmledition/stemming-and-lemmatization-1.html
Changing the world, one post at a time. Sr Data Scientist, Toronto Canada. https://www.linkedin.com/in/susanli/
