91. For the purposes of sections 82, 82.2, 85 to 90 and 92, where a supply of any combination of service, movable property or immovable property (each of which is in this section referred to as an “element”) is made and the consideration for each element is not separately identified,(1) where the value of a particular element can reasonably be regarded as exceeding the value of each of the other elements, the supply of all of the elements is deemed to be a supply only of the particular element; and
(2) in any other case, the supply of all of the elements is deemed, where one of the elements is immovable property, to be a supply only of immovable property, and in any other case, to be a supply only of a service.