Simplify the following text for a Grade 8 native English-speaking person.
Original: However , in International Morse three dits make the letter S , and three dahs the letter O , and it soon became common to refer to the distress signal as `` SOS . ''
Simplified: However , in International Morse , three dits comprise the letter S , and three dahs the letter O. It therefore soon became common to refer to the distress signal as `` SOS . ''