Nokogiri cannot search for tags that are XML processing instructions. You may access them like this.
This is not an XML element; this is an XML "Processing Instruction". That is why you could not find it with your query. To find it you want.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.