constant lookup order
module Kernel
A = B = C = D = E = F = "from kernel"
end
A = B = C = D = E = "from toplevel"
class Super
A = B = C = D = "from superclass"
end
module Included
A = B = C = "from included module"
end
module Enclosing
A = B = "from enclosing module"
class Local < Super
include Included
A = "defined locally"
puts A # "defined locally"
puts B # "from enclosing module"
puts C # "from included module"
puts D # "from superclass"
puts E # "from toplevel"
puts F # "from kernel"
end
end