 Abelard will respond by drawing a distinction between the essentia, or concrete being, of a thing and the “conditions” (status) which a thing may possess or be in. True, the sum of boards and bricks must possess the appropriate arrangement in order to be a house (Logica Ingredientibus II, 171.14–17; and Dialectica 550.36–551.4). But when the sum takes on a specific structure it does not take on an extra part. Whatever they are, Abelard makes it very clear that structures and arrangements like those found in houses are not things (res), and only things can be parts. The imposition of a structure upon the sum of the boards and bricks does not add a part to the thing that is that sum, and hence, the sum of the boards and bricks is the same in essentia as the house—they are the very same thing. Nevertheless, there can be different “conditions” (status) in which this thing is. When the sum of boards and bricks are arranged in one way, they are in the condition of being a house. When they are arranged in other ways, they are not in this condition. In short, to claim that the house is no thing other than the sum of its parts does not imply that the sum is in the state of being a house when the sum exists.