Sentence 1: Ted's apartment was a mess with dog hair everywhere. 
 Sentence 3: Taking out his vacuum cleaner, he began going over every surface 
 Sentence 4:  Three hours in, he had filled all of the bags he purchased 
 Sentence 5:  Sitting down to relax, he decided to just hire a cleaning crew 
 Given Sentence 2: She stepped on a board that suddenly gave way.