Like the tittle says. We can make a stitched casting out of 3 entrails and a string so why not allow us to cut up 1 intestine in to 2 entrails, makes sense to me.
The reason I suggest this is that I often find myself with a shortage of entrails and a large over supply of intestines, due to the way certain recipes need a lot of entrails. A look at some of the offers at the market stands tells me I'm not the only one with such a problem.