before_sent:  The pelagic zone consists of the water column of the open ocean , and can be divided into further regions categorized by light abundance and by depth.
before_sent_with_intent: <clarity>  The pelagic zone consists of the water column of the open ocean , and can be divided into further regions categorized by light abundance and by depth.
after_sent:  The pelagic zone consists of the water column from surface to ocean floor throughout the open ocean , and can be divided into further regions categorized by light abundance and by depth.