<s>[INST] What is the difference between an ocean and a sea? [/INST] There are five oceans in the World: The Pacific, Atlantic, Indian, Arctic, and Southern Oceans. 

A sea is defined as a division of an ocean partly or fully enclosed by land. As a result, all seas are saline, or filled with salt water.

There are over 50 seas in the World! Wow!

Please let me know if I can assist you further </s>