R' Meir says: Some things are attached to the ground, but are not treated as land; but the Sages do not concur with him. How so? [If one claims,] “I delivered to you ten fruit-laden vines,” and the other one says, “They were only five” —- R' Meir declares him liable to an oath; but the Sages say: Anything attached to the ground is treated as land.  There is no oath except in regard to something defined by measure, weight, or number. How so? [If one claims,] “I delivered to you a full house,” or “I delivered to you a full purse,” and the other one says, “I do not know, but whatever you put down you are taking” —- he is exempt. [If] this one says, “Up to the projecting beam,” and this one says, “Up to the window” —- he is liable.