Which language

Uses multi-dimensional tuples as the base type(like LISP lists)?
* multi-dimensional tuples is the one-size-fits-all datatype that is like multi-dimensional array where each cell can have any type, even containing sub-arrays.

>>12

What? Cons takes two arguments - it is 2d.

the point is that arguments to cons can be anything, including other cons cells. so it's easy to build multi-dimensional structures with it