Simplify the following text for a Grade 13 native English-speaking person.
Original: These include the north Atlantic Ocean , the eastern and western parts of the Pacific Ocean ( considered separately because tropical cyclones rarely form in the central Pacific ) , the southwestern Pacific , the southwestern and southeastern Indian Oceans , and the northern Indian Ocean .
Simplified: These include the north Atlantic Ocean , the eastern , central , and western parts of the Pacific Ocean , the southwestern Pacific , the southwestern and southeastern Indian Oceans , and the northern Indian Ocean .