Set an annual reminder to send a birthday card to mom on May 28th.
[IN:CREATE_REMINDER Set an [SL:RECURRING_DATE_TIME [IN:GET_RECURRING_DATE_TIME [SL:FREQUENCY annual ] ] ] reminder to [SL:TODO [IN:GET_TODO [SL:TODO send a birthday card to mom ] [SL:DATE_TIME on May 28th ] ] ] . ]