 The other way to introduce the subject matter is by providing examples of paradigmatic intrinsic and extrinsic properties. One half of this task is easy: everyone agrees that being an uncle is extrinsic, as is being six metres from a rhododendron. The problem with using this method to introduce the distinction is that there is much less agreement about which properties are intrinsic. Lewis has in several places (1983a, 1986a, 1988) insisted that shape properties are intrinsic, but one could hold that an object’s shape depends on the curvature of the space in which it is located at, and this might not even be intrinsic to that space (Nerlich 1979), let alone the object (see also Bricker 1993 and Skow 2007). Lewis also mentions charge and internal structure as being examples of intrinsic properties. (For ease of exposition, we will assume below that shape properties are intrinsic. We will also assume that properties like being made of tin, and having a mass of 500kg are intrinsic.)