Sentence 1: Jim was a new chef working his first day. 
 Sentence 3: As it was cooking, it caught fire 
 Sentence 4:  Jim luckily had good training and put the fire out 
 Sentence 5:  The customer got a new burger and everyone was safe 
 Option 1: A customer ordered a burger and he started to cook it. 
 Option 2: A customer ordered a burger, he started to cook it, and it never caught on fire.