In this Part, except where the context otherwise requires, "sale, insurance, salvage or compensation moneys", in relation to an event which gives rise or might give rise to a balancing allowance or a balancing charge to or on any person, means - (a) where the event is a sale of any property, including the sale of a right to use or otherwise deal in machinery or plant consisting of computer software, the net proceeds to that person of the sale, (aa) as respects machinery or plant consisting of computer software or the right to use or otherwise deal with computer software, where the event is the grant of a right to use or otherwise deal with the whole or part of that machinery or plant, the consideration in money or money's worth received by that person for the grant of the right, (b) where the event is the demolition or destruction of any property, the net amount received by that person for the remains of the property, together with any insurance moneys received by that person in respect of the demolition or destruction and any other compensation of any description received by that person in respect of the demolition or destruction, in so far as that compensation consists of capital sums,