Sentence 1: Amber and Henry went to the zoo. 
 Sentence 3: Amber wanted to take one of the pigs home as a pet 
 Sentence 4:  She then saw the pig rolling around in the mud 
 Sentence 5:  She changed her mind about having a new pet 
 Option 1: They saw pigs, zebras, and lions. 
 Option 2: They weren't able to see any animals.