Ex-r?

Sup guys, I got my ride and some other peoples carfaxed (link below if you guys need one)

http://139.81.142.25/vbulletin/t80050.html

anyway, my moms 91 accord shows up as an "EX-R" and I was wondering if that means anything special, or what, its an EX as far as I know.

We are the third owners, and it was originally registered in New Jersey (its a long way from home lol)

as far as i know its just an ex that was produced in canada