About: http://webisa.webdatacommons.org/136440053

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Later we shall see that the solution can be formalized in a general way whose special cases provide also the solutions for both kinds of trees.
http://www.w3.org/ns/prov#wasQuotedFrom	haskell.org