Hide one column of a side-by-side question based on a previous question

If you split up text entry question into two, then you can use the code below, by just changing the QID and choice ids.
Qualtrics.SurveyEngine.addOnReady(function(){

c2 = "${q://QID14/ChoiceTextEntryValue/1}";
c2 = c2.replaceAll(/\\,\\s/gm,"");
if(c2 == 0){
this.getChoiceContainer().querySelectorAll(".SBS2").forEach(item => item.remove());
}

c3 = "${q://QID14/ChoiceTextEntryValue/2}";
c3 = c3.replaceAll(/\\,\\s/gm,"");
if(c3 == 0){
this.getChoiceContainer().querySelectorAll(".SBS3").forEach(item => item.remove());
}
});

I haven't seen anything like that before. What kind of a question is it?
Don't inspect, use piped text to figure out the replacement.
With your current setup, SBS2 corresponds to the "Number of question" and SBS3 to the yes/no question. So, you'll have to split it into two questions.