Sentence 1: Jerry grabbed his surfboard and swam into the ocean. 
 Sentence 3: Just as he prepared to climb his board, he saw a giant shark 
 Sentence 4:  Jerry quickly climbed his board and tried to escape the shark 
 Sentence 5:  Then last minute, Jerry realized the shark was just a dolphin 
 Given Sentence 2: He saw a great looking wave and swam over to surf it.