Lands appropriated by congress for the support of schools and ministerial purposes include the following:
(A) Lands on which the lease has expired or will expire after a period of time, not to exceed twenty years after January 1, 1970;
(B) Lands on which the lease is determined to be for a period of time as defined in division (A) of this section and where substantial improvements have been added to the expense of the lessee;
(C) Lands leased for ninety-nine years, renewable forever, or leases which have been renewed for a like term.