6. However these submissions are put, they require a departure from the ordinary and natural meaning of the words of the sections. Although the taxpayer retains a right to use the caravans, and does in fact use them, it nevertheless grants to each customer a right to use them. Even if it were to be admitted that the provisions of s. 82AA are rendered ambiguous by the use of the words "wholly and exclusively", the words of s. 82AG(1) are perfectly plain; their effect is that if, within the time mentioned, the taxpayer has granted a right to another person to use the property, the subdivision does not apply in relation to the property. The argument of the taxpayer seeks to modify these words by adding to them words such as "and has not himself at the same time used the property as plant". There is no context that requires this departure from the ordinary meaning of the sections; on the contrary, the context suggests that no such gloss as is suggested on behalf of the taxpayer should be put upon them. By s. 82AG the right to the investment allowance is lost not only if, within twelve months after the property was first used, or installed ready for use, by the taxpayer, the taxpayer leased the property, let it on hire under a hire-purchase agreement or otherwise granted a right to another person to use it, but also if the taxpayer disposed of the property, or the property was lost or destroyed, or the taxpayer used the property outside Australia or for a purpose other than the purpose of producing assessable income. The right to the allowance may also be lost if the taxpayer does any of those things after the expiration of the twelve months, if the Commissioner is satisfied that when the property was acquired or constructed the taxpayer intended to do any of those things after becoming entitled to a deduction: see s. 82AH. No provision is made for any apportionment if, for example, the taxpayer granted to another a right to use the property for a short time only, or if for a short time only the taxpayer used the property for a purpose other than the purpose of producing assessable income. The provisions of these sections may be contrasted with those which in certain circumstances allow a leasing company to transfer the whole or part of a relevant deduction to a lessee, but only if the lessee used the property for the purpose of producing assessable income: see ss. 82AA(b), 82AD, 82AG(3)(B), 82AH(3), (4). All these provisions support the view that (except in the case of leasing companies) the Parliament intended that the allowance should not be deductible unless the taxpayer kept both the property and the exclusive right to use it, and did use it only for the purpose of producing assessable income. (at p183)