demeter.rb

class SomeClass
	def initialize a, b, c
		@a, @b, @c = a, b, c
	end

	def some_method
		@b.work_with @a.something
		@c.do_something @a.something_else
	end
end

class SomeClassPrime

	def self.make a, b, c
		new a.something b, c, a.something_else
	end

	def initialize x, b, c, y
		@x, @b, @c @y = x, b, c, y
	end

	def some_method
		@b.work_with @x
		@c.do_something @y
	end
end

in SomeClass it doesn't need @A, it needs some data in @A. In the refactoring SomeClassPrime it uses make as glue, it could have some error checking in it.

SomeClass looks more simpler than SomeClassPrime. but instances of the latter are simpler than the instances of former.