Sentence 1: Sophie wanted to get a pet. 
 Sentence 3: She decided to get one anyway, and got a cat 
 Sentence 4:  Her landlord found out she had gotten a cat 
 Sentence 5:  Luckily, her landlord had 10 cats herself, and so didn't mind 
 Option 1: So she got a dog. 
 Option 2: Her landlord wouldn't let her get one.