{ch lhe title to 4 Clifton Road contains a number of oovenants from a conveyance dated 2 December 1926 between Don's Archibald {1} and Simon Leader [2] induding the following: "The Purchaser for himself and his successors in title hereby covenants with the Vendor [to the intent that this covenant shall be binding on and run with the land hereby conveyed into whosoever hands the same may from time to time be vested} for the benet of the adjoining land of the Vendor and each and every part thereof as follows: '1 To erect and forever thereafter to maintain a fence on the boundary marked with an inward facing T on the plan attached hereto. 2 Not to alter or extend the Property. 3 Not to do or permit to be done on the Property any act or thing which may be or become a nuisance or an annoyance. Layla and Giles tell you that they may want to extend the house in the future. They would like to know whether the oovenants prevent them from doing so. The benefitted land is land next door which belongs to George. {i} Explain how you will ascertain whether the covenants are enforceable against Layla and Giles