before_sent:  It is this upper sunlit ocean that creates the food supply that ultimately sustains most of the ocean ecosystem  . Light only penetrates to a  few hundred meters depth , so the remaining ocean below this is cold and dark.
before_sent_with_intent: <clarity>  It is this upper sunlit ocean that creates the food supply that ultimately sustains most of the ocean ecosystem  . Light only penetrates to a  few hundred meters depth , so the remaining ocean below this is cold and dark.
after_sent:  It is this upper sunlit ocean that creates the food supply that ultimately sustains most of the ocean ecosystem . Light only penetrates to a depth of a few hundred meters depth , so the remaining ocean below this is cold and dark.