Change the reminder to send an 'I love you' message to my sister on facebook from  the 19th to the 23rd.
[IN:UPDATE_REMINDER_DATE_TIME Change the reminder to [SL:TODO [IN:SEND_MESSAGE send an ' [SL:CONTENT_EXACT I love you ] ' message to [SL:RECIPIENT [IN:GET_CONTACT [SL:CONTACT_RELATED my ] [SL:TYPE_RELATION sister ] ] ] on [SL:NAME_APP facebook ] ] ] [SL:DATE_TIME from the 19th ] [SL:DATE_TIME_NEW to the 23rd ] . ]