Sentence 1: Jack really wanted to open a restaurant. 
 Sentence 3: Jack had no idea how to run a restaurant 
 Sentence 4:  Nobody came to his restaurant because his food was terrible 
 Sentence 5:  Jack had to shut down his restaurant due to poor business 
 Option 1: He mortgaged his house in order to start a burger joint. 
 Option 2: He went to culinary school and learned all he needed to know.