Sentence:  Without saying so , she was really grateful ; for to attend the dying was something she had never experienced , and certainly had not imagined when she thought of the <WSD>duties</WSD> she would have as Bobby Joe 's wife . 
Meaning of the word marked with <WSD> tags:  the social force that binds you to the courses of action demanded by that force; every opportunity, an obligation; every possession, a duty"- John D.Rockefeller Jr