This relation is a refinement of the more general Using relation. Perspective on constrains related frames considerably more. The use of this relation indicates the presence of at least two different points-of-view that can be taken on the Neutral frame. For example, the Measure scenario, in which an Entity’s Value for some Attribute is described, can be viewed either from the point-of-view of exact measurement (e.g. “Joey weighed 7 pounds.”) or as a relative measure (e.g. “Joey was heavy.”). The FEs in the two cases are quite different, so the words should not be included in the same frame, but they do make reference to the same scene. The Perspective on relation allows us to refer directly to the scene (encoded by the Neutral Measure scenario frame here) and connect the two. As in this case, the Neutral frame is normally Non-lexical and Non-perspectivalized. A single Neutral frame generally has at least two Perspectivalized frames, but in some cases, words of the Neutral frame are consistent with multiple different points-of-view while the Perspectivalized frame is consistentwithonlyone. Whenever there is a state of affairs that is describable by a frame in a Perspective on relation, all the other frames that are connected to it by the Perspective on relation can also be used to describe the state of affairs. For example, the Commercial transaction frame specifies a complex schema involving an exchange of multiple Themes (the Money and Goods) between the Buyer and Seller, including also two subframes: Commerce goods-transfer and Commerce money-transfer. The Buying frame has a Perspective on relationship with the Commerce goods-transfer subframe in which the Money, Goods, Buyer, and Seller are identified. Some other relations of this type include: • Get a job and Hiring are perspectives of Begin employment • Rope manipulation and Knot creation are perspectives on Knot creation scenario Further note that it is quite common for a frame to inherit from one frame and be a perspective on another. An example of this is again provided by the Commerce buy frame, which inherits the Getting frame but is a perspective on the Commerce goods transfer frame. An act of buying is a sub-type of getting, which justifies the inheritance relation to Getting. Buying is an event that only occurs when the situation (the Commerce goods transfer) is also describable as selling. For that reason, it (and the Commerce sell) is connected to the Commerce goods transfer frame via a Perspective on relation. xsd:string