(2) The entering into an enhanced-use lease by the Secretary covering any land or improvement described in such section
421 (b)(2) shall not be considered to be prohibited under that section if under the lease
(A) the designated property is to be used only for child-care services;
(B) those services are to be provided only for the benefit of
(i) employees of the Department;
(ii) individuals employed on the premises of such property; and
(iii) employees of a health-personnel educational institution that is affiliated with a Department facility;
(C) over one-half of the employees benefited by the child-care services provided are required to be employees of the Department; and
(D) over one-half of the children to whom child-care services are provided are required to be children of employees of the Department.