Perl often maps to human language. Created by a linguist, not a Comp-Sci guy. So I don't think you CAN have a single line like that.
You can say MOST things are scalars, which are individual data elements that are usually a strings, but can also be numbers or references (not quite pointers, but very close).
You then have GLOBS and FILE HANDLES, which I decline to go into detail.
You then have arrays and hashes.
Pretty much everything else is built on these.
And yes, since this is off the top of my head, I've probably missed some stuff.