Remind Tom and Dad to leave at 6 pm , 15 mins before .
[IN:CREATE_REMINDER [SL:PERSON_REMINDED Tom ] [SL:PERSON_REMINDED [IN:GET_CONTACT [SL:TYPE_RELATION Dad ] ] ] [SL:TODO [IN:GET_TODO [SL:TODO leave ] [SL:DATE_TIME at 6 pm ] ] ] [SL:DATE_TIME 15 mins before ] ]