Sentence 1: Alice was very particular about her coffee mug. 
 Sentence 3: One day, Alice caught her roommate using her green mug 
 Sentence 4:  Alice confronted her roommate and got her mug back 
 Sentence 5:  From then on, Alice kept her prized mug in her room 
 Given Sentence 2: It was a green mug given to her by her grandfather.