This is the part of the farm that has sad memories. On their own, these memories don't do much. However, they produce a syrup that, when mixed with happy memories, enhances the happy memories, and can lead to huge excesses of juice.
You have them set up with pipes that collect a meager amount of juice, but you have another system set up that extracts the sad syrup, which is taken to the contraster to be incorporated into happy juice.