1In this Act " relevant licence " means any licence under which a person has the exclusive occupation of a dwelling-house as a separate dwelling and which—
(a)if it were a tenancy, and
(b)if section 2 of the [1968 c. 23.] Rent Act 1968 (tenancies excepted from the definition of " protected tenancy") were modified as mentioned in paragraph 3 below,
would be a protected tenancy for the purposes of that Act.