For paragraph 17 of the Schedule to the Council Tax (Exempt Dwellings) (Scotland) Order 1992, there shall be substituted the following paragraph:—“17 A dwelling which is, or is part of, a hall of residence provided predominantly for the accommodation of students, and which—a is owned or managed by—i an institution within the meaning of paragraph 5(4) of Schedule 1 to the Act; orii a body established for charitable purposes only; orb is the subject of an agreement allowing such an institution to nominate the majority of the persons who are to occupy the accommodation so provided.”