1<!-- 2long comment long comment long comment long comment long comment long comment 3long comment long comment long comment long comment long comment long comment 4long comment long comment long comment long comment long comment long comment 5long comment long comment long comment long comment long comment long comment 6long comment long comment long comment long comment long comment long comment 7long comment long comment long comment long comment long comment long comment 8long comment long comment long comment long comment long comment long comment 9--> 10<!DOCTYPE a [ 11<!ELEMENT a EMPTY> 12]> 13<a/> 14