37 Building construction and building construction supervision in the course of construction of offshore wind power plants and wind power plants in lakes and dams; rental, repair, maintenance, installation of offshore wind power plants and wind power plants in lakes and dams; inspection services in the course of construction of offshore wind power plants and wind power plants in lakes and dams; building construction, building construction supervision; rental, repair, maintenance, installation of foundations, installations, structures and building- and construction materials for offshore wind power plants and wind power plants in lakes and dams, in particular flexible, portable and floating foundations for turbines, generators, motors and machines for generating electricity, in particular for conversion of wind power to electrical energy; inspection in the course of construction of foundations, installations, structures and building- and construction materials for offshore wind power plants and wind power plants in lakes and dams, in particular flexible, portable and floating foundations for turbines, generators, motors and machines for generating electricity, in particular for conversion of wind power to electrical energy; advisory service regarding construction, building construction supervision, rental, repair, maintenance, and installation of floating foundations, installations, structures and building and construction materials, for offshore wind power plants and wind power plants in lakes and dams; inspection in the course of construction of offshore wind power plants and wind power plants in lakes and dams, in particular of foundations, installations, structures and building- and construction materials, for offshore wind power plants and wind power plants in lakes and dams