(1) A parent of the deceased shall be entitled to death benefit if, at the deceased's death, the parent was being wholly or mainly maintained by the deceased, or would but for the relevant accident have been so maintained.
(2) Subject to subsections (3) and (4), the death benefit shall be a pension at the weekly rate set out in column (2) of Part I of the second Schedule, increased, in the case of a person who has attained pensionable age, by the amount set out in column (7) of that Part I of the second Schedule where the beneficiary is living alone.
(3) Subject to subsection (4), the weekly rate of pension payable to a parent shall be -
(a) at the reduced weekly rate, where the deceased was at death a married person,
(b) at the maximum weekly rate, where the deceased was at death a widower, a widow or a single person -
(i) in any case where the parent is the father and was, at the death of the deceased, incapable of self-support by reason of some physical or mental infirmity and