Make a note that I have a dentist appointment on August 13, remind me on August 12.
[IN:CREATE_REMINDER Make a note that I have [SL:TODO [IN:GET_TODO [SL:TODO a dentist appointment ] [SL:DATE_TIME on August 13 ] ] ] , remind [SL:PERSON_REMINDED me ] [SL:DATE_TIME on August 12 ] . ]