   revision_id int not null,
   subject varchar(256) not null,
   quotation_id int not null,
+  occurrence_id int not null,
   correction_id int,
   created_at datetime,
   updated_at datetime,

create table quotation (
  id int not null auto_increment,
  revision_id int not null,
  page varchar(256),
  position varchar(256),
  body text not null,
  font_face varchar(16) not null,
  created_at datetime,
  updated_at datetime,
  primary key (id)

drop table if exists publicity;
drop table if exists review;
drop table if exists quotation;
drop table if exists occurrence;
drop table if exists correction;
drop table if exists report;
drop table if exists report_history;
drop table if exists acknowledgement;
