Add a reminder to give dog flea pill on 8th of each month with no end date.
[IN:CREATE_REMINDER Add a reminder to [SL:TODO [IN:GET_TODO [SL:TODO give dog flea pill ] [SL:RECURRING_DATE_TIME [IN:GET_RECURRING_DATE_TIME [SL:DATE_TIME on 8th ] of [SL:FREQUENCY each month ] ] ] ] ] with no end date . ]