The six weeks of benefits are for the end of a life. The doctor must certify that the child will very likely die within 26 weeks. In that case, the parents would be eligible for the 35 weeks, if the child were critically ill. Then, if the child's condition were to deteriorate during those 35 weeks, the parents could possibly qualify for another 6 weeks of benefits in order to continue caring for the child.
On October 18th, 2012. See this statement in context.