Literal question
225) FOR EACH BIRTH SINCE JANUARY 2010, ENTER B IN THE MONTH OF BIRTH IN THE CALENDAR. WRITE THE NAME OF THE CHILD TO THE LEFT OF THE CODE B FOR EACH BIRTH. FOR EACH BIRTH, ASK THE NUMBER OF COMPLETED MONTHS PREGNANCY LASTED AND RECORD P IN EACH OF THE PRECEDING MONTHS ACCORDING TO THE DURATION OF THE PREGNANCY. (NOTE: THE NUMBER OF PS MUST BE ONE LESS THAN THE NUMBER OF MONTHS THAT THE PREGNANCY LASTED.)