Sentence 1: A boy was swimming in the ocean. 
 Sentence 3: Then he saw a large fin breach the water 
 Sentence 4:  The boy swam as fast as he could toward shore 
 Sentence 5:  The boy finally made it to the beach safety away from the shark 
 Option 1: He then heard splashing around him. 
 Option 2: He then got tired and got out.