In short, the digestive system is the process by which our body, organs and chemicals break down the food which we eat.
(the digestive system; is; the process by which our body, organs and chemicals break down the food) (our body, organs and chemicals; break down; the food which we eat; L:the process) (the food; eat; we)
the digestive system our body, organs and chemicals the food
is break down eat
the process by which our body, organs and chemicals break down the food
the food which we eat L:the process
we