[Haskell-beginners] Product/tuple type vs. ...

[Galaxy Being]

Reading this
<https://www.cefns.nau.edu/~edo/Classes/CS396_WWW/Misc_docs/Haskell.html>
I'm a bit confused but think I understand what is meant by a *product
*or *tuple
*type constructor such as

data Point a b = Pt a b

Because Point has no "logical or," (|) of more than one possible value set
such as

data Color = Red | Green | Blue

 it is automatically a tuple type? Also, it has no possible "consing" --
does that play a role?

data Things a = T1 a (Things a) | T2 a (Things a) | LastT a

Things is also parameterized just like Point, but, again, Things is not a
tuple type for the reasons above, e.g., just having one parameterized
constructor means automatically a tuple type, right?

LB
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