Sentence:  Gazing at her husband 's drugged body , his <WSD>chest</WSD> rising and falling in mindless rhythms , she saw the grandeur of his fictional world , that lush garden from which he plucked flowers and herbs . 
Meaning of the word marked with <WSD> tags:  the part of the human torso between the neck and the diaphragm or the corresponding part in other vertebrates