In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
One example: The Inheritance Cycle is a series of fantasy books written by Christopher Paolini.
Solution is here: The Inheritance Cycle is a tetralogy of young adult high fantasy novels written by American author Christopher Paolini.
Explanation: The output sentence elaborates on the input sentence without changing its general meaning e.g. "tetralogy of young adult high fantasy novels".

Now, solve this: The Silky shark feeds mainly on bony fish such as tuna , mackerel , sardines , mullets , groupers , snappers , sea chubs , sea catfish , eels , lanternfish , filefish , triggerfish , and porcupinefish .
Solution:
The silky shark is an opportunistic predator , feeding mainly on bony fishes from all levels of the water column , including tuna , mackerel , sardines , mullets , groupers , snappers , mackerel scads , sea chubs , sea catfish , eels , lanternfishes , filefishes , triggerfishes , and porcupinefishes .