Read this: Wove paper does not exhibit "laidlines", which are small regular lines left behind on paper when it was handmade in a mould made from rows of metal wires or bamboo. Laidlines are very close together. They run perpendicular to the "chainlines", which are further apart. Handmade paper similarly exhibits "deckle edges", or rough and feathery borders.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"):  What runs parallel to the laidlines?
unanswerable