She put off her project until the early hours of the morning as being safer, since the servants were accustomed to hearing her move about her room at that time. 
The servants had served her family for almost her entire life.
mnli hypothesis: The servants had served her family for almost her entire life. premise: She put off her project until the early hours of the morning as being safer, since the servants were accustomed to hearing her move about her room at that time. 