set a reminder 2 days before the phone bill is due on the 15th of every month
[IN:CREATE_REMINDER set a reminder [SL:DATE_TIME 2 days before ] [SL:TODO [IN:GET_TODO [SL:TODO the phone bill is due ] [SL:RECURRING_DATE_TIME [IN:GET_RECURRING_DATE_TIME [SL:DATE_TIME on the 15th ] of [SL:FREQUENCY every month ] ] ] ] ] ]