Sentence 1: Vanessa was shopping with her mom. 
 Sentence 3: Vanessa perused the fish tanks as they shopped 
 Sentence 4:  A blue fish caught her eye and she begged her mom for it 
 Sentence 5:  Luckily her mom said yes and she brought the pet home 
 Given Sentence 2: They were in the pet store buying some dog food.