Okay, similar question to my previous one. The equipment weight in adventuring gear says:

Paper (one sheet) 2 sp —

Parchment (one sheet) 1 sp —

It has nothing about multiple sheets of parchment or paper. How much do several sheets of parchment or paper weigh? Assuming others might ask whether how many sheets that is, assume at least 5.

(And if someone has already asked this one, please answer!)