Subject	Predicate	Object	Graph
xhv:button http://www.w3.org/1999/xhtml/vocab#button	rdfs:comment http://www.w3.org/2000/01/rdf-schema#comment	An input that allows for ...... pressed. Also see link. http://www.w3.org/2001/XMLSchema#string	graph:default https://triplydb.com/w3c/xhv/graphs/default