I would suggest that you find a dictionary, Riversea.
Did you read the article from scirp.org??
That is the one about R1a1 etc.
You asked about R1a haplogroup and the haplogroup of another group of people.
What did you learn from reading that?
Where does R1a1 haplogroup come from?
and so on…
As for the definitions of well and cistern…try the dictionary.
You might find one on a bookshelf at home or at your library. You might also google the word “well”…as I see that you have googled “cistern.”
From what I can see of your wikipedia.org contribution on the subject of cisterns, then you have found a good definition.
As for Alice L…she is a poster on this site. If she was trying to describe wells and cisterns–and you could not understand, then you should ask her to explain better.