a:4:{i:0;a:3:{i:0;s:60:"The little boy asked his father if the sun rose in the East.";i:1;d:0;i:2;i:1;}i:1;a:3:{i:0;s:59:"The little boy told his father if the sun rose in the East.";i:1;d:0;i:2;i:0;}i:2;a:3:{i:0;s:61:"The little boy asked his father if the sun rises in the East.";i:1;d:0;i:2;i:0;}i:3;a:3:{i:0;s:65:"The little boy asked his father if the sun had risen in the East.";i:1;d:0;i:2;i:0;}}