Sentence 1: Gina decided she would make a copy of her house key. 
 Sentence 3: She had the copy made at her local grocery store 
 Sentence 4:  She decided to carry both keys with her 
 Sentence 5:  One she put on a safety pin, and secured it in a pocket of her purse 
 Given Sentence 2: She wanted a spare in case she lost her key again.