(a) a single payment described in the second paragraph and made under the terms of a contracti. which entitles him to receive, during a period beginning not later than ten months after the date of such payment, either an annuity for life or such annuity with a guaranteed term for a number of years not exceeding the lesser of 15 and the difference between 85 and his age at the time the annuity commences to be paid to him, or an annuity for such guaranteed term; and
ii. which shall not provide for payments other than the single payment by the individual and the equal annuity payments which must be paid to him annually or at more frequent periodic intervals; or
(b) a single payment made in respect of his taxation year 1981, other than a single payment contemplated in subparagraph a according to the terms of a contracti. providing that all the payments to the individual under the contract must be made before 1 January 1983; and
ii. providing no other payment than the single payment by the individual and the payments described in subparagraph i.