Sentence 1: Millie was baking cookies. 
 Sentence 3: Suddenly, her arm bumped into the bright orange heating element 
 Sentence 4:  She immediately stuck the burned area under some cold water 
 Sentence 5:  Still, she got a fairly gnarly burn mark that lasted for a week 
 Given Sentence 2: When she arrived, she realized she had forgotten the shopping list.