Speak the words (sets) and punctuation issues

Hello. I am having difficulty with speak the words and punctuation in English.

Punctuation is recognized differently than the expected answer, causing the user to be told they are wrong even though all of the words they have spoken were recognized correctly.

I.e. [it's] is recognized as [its], or [It's a sunny day. It's a nice day.] is recognized as [It's a sunny day, its a nice day], and so on.

Is there any other way to adjust this or perhaps even tell the program not to worry about the punctuation at all during recognition? Students are getting frustrated and losing confidence.

Thanks for any guidance.