Sentence 1: Jack and Mike worked at a factory. 
 Sentence 3: Jack and mike loved to make poles 
 Sentence 4:  One day they decided to start a metal pole fan club 
 Sentence 5:  Mike and jack are the only members of the club 
 Option 1: The factory they worked at, manufactured metal poles. 
 Option 2: The factory they worked at had an accident.