b1.compilation = b2.compilation and
b1.result = b2.result and
b1.mark = '<?php echo $before_last_mark ?>' and b2.mark= '<?php echo $last_mark ?>' and
b1.compilation = b2.compilation and
b1.result = b2.result and
b1.mark = '<?php echo $before_last_mark ?>' and b2.mark= '<?php echo $last_mark ?>' and