knownDocument3.setAuthor("Mary");
knownDocument3.addEventSet(null, known3);
knowns.add(knownDocument3);
Document knownDocument4 = new Document();
knownDocument4.setAuthor("Peter");
knownDocument4.addEventSet(null, known4);
knowns.add(knownDocument4);
Document knownDocument6 = new Document();
knownDocument6.setAuthor("Susie");
knownDocument6.addEventSet(null, known6);
knowns.add(knownDocument6);