Sentence 1: Jen searched for her drinking cup in the house. 
 Sentence 3: She picked up one of them and started to drink from it 
 Sentence 4:  Unfortunately, she started to choke since there were nails in the cup 
 Sentence 5:  I had to help her cough it out by performing the Heimlich maneuver 
 Given Sentence 2: It was tough for her to find it since most of the cups looked the same.