How to Count List in 1 Cell on google Sheet?

I want to count how many list in the cell. I have a table like this

And I don’t know how to count that list so it can make out put like this

I’m sorry I’m not using the table to ask in here because I don’t know how to use list on the table. You can Access the sheet here : sheet2
Thanks!

>Solution :

try:

=INDEX(LEN(REGEXREPLACE(A2:A4, "[^\.]", )))