Similar words considered the same word (то and том in russian)

I’m studying Russian, and I marked the word “то” to learn.
When I study, the app offers me to learn “то” by giving me sentences with the name “том”.

It looks like the app doesn’t make the difference between the 2 words. Ideally I would mark “то” as to be studied, and “том” as not to learn.

Том is a case of то
Just remember it and move on