Can Guinea Pigs Digest yarn? (Stupid Question but I need an answer)?

I have a young female guinea pig who is very dear to me... I also have a bracelet, that is yarn, and she loves to chew on it. She got hold of the knot at the end and did bite it off and eat it, I tried to get it out of her mouth but could not. Will she be able to digest this or will this cause problems? I'm very worried... This is a stupid question because the answer is probably negative...