Remind Shannon and Ayslyn to leave at 10 am ; alert them 15 min before .
[IN:CREATE_REMINDER [SL:PERSON_REMINDED Shannon ] [SL:PERSON_REMINDED Ayslyn ] [SL:TODO [IN:GET_TODO [SL:TODO leave ] [SL:DATE_TIME at 10 am ] ] ] [SL:DATE_TIME 15 min before ] ]