Sentence 1: Cora was trying to make a Christmas gift budget. 
 Sentence 3: Cora decided she needed to pare down some of the purchases 
 Sentence 4:  She cut her budget down by a third 
 Sentence 5:  Now Cora could afford to buy everything on her list 
 Given Sentence 2: After adding it all together, she found it was unfeasible.