What is the product of this reaction? (Organic chemistry)?

I have a solution of cis-Norbornene-5,6-endo-dicarboxylic Anhydride (C9H10O4, structure at a href="http://webbook.nist.gov/cgi/cbook.cgi?Struct=C129646)." rel="nofollow"http://webbook.nist.gov/cgi/cbook.cgi?St…/a What should I expect the product to be when heated, using sulfuric acid (H2SO4) as a solvent? Will this protonate the C=C bond?