Purchase: another kind of transaction activity a kind of complete compensation/consideration business. E54 Dimension E97 Monetary Amount P179 had sales price P23 transferred title from P22 transferred title to E39 Actor E96 Purchase E39 Actor P24 transferred title of E18 Physical Thing Monetary Amount is not a subclass of Dimension. It is a kind of quantity The property “had sales price: E70 Thing” is a shortcut of the more developed path through “Acquisition: had consideration: E70 Thing”, which is also a generalization. The “thing” that is used as a price, is money, which probably is not a dimension, it cannot be observed, measured; it is a quantity that is liquified and it is used in that form, and it is related to a legal status/contract and it has a specific time-span (a duration).

SO6 Obligation Cancellation Bilateral Business Relation services and payments increase/decrease obligations. SO1 Social Binding E7 Activity E7 Activity P14 carried out by P14 carried out by E39 Actor (X) SC1 was provided to SC7 was obligation to SO5 Service Contract SO2 Service Action (X) E39 Actor (Y) SC2 initialized SC3 increased SC4 decreased SC5 terminated SC12 initialized SO3 Obligation (X) SC6 was obligation of SO3 Obligation (Y) Monetary Amount is not a subclass of Dimension. It is a kind of quantity SO6 Obligation Cancellation SC9 decreased SC11 initialized SC10 terminated SC13 terminated P14 carried out by SO4 Payment (Y) SC8 was provided to E97 Monetary Amount SC14 payed

Bilateral Business Relation provisions increase/decrease obligations. SO1 Social Binding P14 carried out by E7 Activity E39 Actor E7 Activity P14 carried out by E39 Actor (X) SC1 was provided to SC7 was obligation to SO5 Service Contract (XY) SO2 Provision (X) E39 Actor (Y) SC2 initialized SC3 increased SC4 decreased SC5 terminated SC8 initialized SO3 Obligation (X) SC6 was obligation of SO3 Obligation (Y) Monetary Amount is not a subclass of Dimension. It is a kind of quantity SO6 Obligation Cancellation SC9 cancelled SC10 payed SO4 Payment E97 Monetary Amount FOL: SC1(u,y) ⊃ SO2(u) SC1(u,y) ⊃ E39(y) SC1(u,y) AND P14(u,x) ⊃ SC3(w,y) AND SC7(w,x) AND (SC2(u,w) OR SC3(u,w) …… SO7 Service Action SO8 Labour Provision E8 Acquisition