I don't want to be late for work at 10:30am; can you alert me 20 minutes before?
[IN:CREATE_REMINDER I don't want to be late for [SL:TODO [IN:GET_TODO [SL:TODO work ] [SL:DATE_TIME at 10 : 30 am ] ] ] ; can you alert [SL:PERSON_REMINDED me ] [SL:DATE_TIME 20 minutes before ] ? ]