Splitting Arrays With Sentences

I have an array I want to split. This is the code I am currently using:Code:

<%
dim aSelected
aSelected = split(request.form("option"),",")
for i = 0 to ubound(aSelected)
response.write (aSelected(i) & ("<br>"))
next
%>

This splits the array no problem. The problem I have is that the different variables (if thats the word to use?) the array is holding is sentences that contain commas in themselves. So the split is splitting my sentences. How can I split the variables at the end of the sentences. (some sentences have periods some don't so I can't use the ".").