In the Republic of Uganda, John owns 2 acres of land in industrial area on which he established a petrol station and three tanks were planted underground. Alex concluded a sale agreement with John but John insists that he wishes to remove the tanks planted on the land.On the same piece of land, John had constructed a two bedroom house having several portraits intended to beautify the place and elevate its value. John wants to remove the portraits as well yet Alex contends that it is the portraits that caught his attention and drove him into purchasing the land.On other developments, Carol, the owner of the land adjacent to that of Alex erected a post advertising her company projecting into the land of Alex by 2 meters. When Alex complained, Carol informed him that he only owns the surface of the land and what is below it. That the space above the surface belongs to nobody.

Identify legal issues arising from the above facts and advise the parties with the aid of statutory and case law authorities.