a:4:{i:0;a:3:{i:0;s:54:"They said they have lived in this city for many years.";i:1;d:0;i:2;i:0;}i:1;a:3:{i:0;s:58:"They said that they had lived in this city for many years.";i:1;d:0;i:2;i:1;}i:2;a:3:{i:0;s:49:"They said they lived in this city for many years.";i:1;d:0;i:2;i:0;}i:3;a:3:{i:0;s:60:"They said they have been living in this city for many years.";i:1;d:0;i:2;i:0;}}