This HTML5 document contains 5 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

PrefixNamespace IRI
isaphttp://webisa.webdatacommons.org/prov/
isahttp://webisa.webdatacommons.org/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
n5lesswrong.
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
Subject Item
isa:447198858
rdf:type
prov:Entity
prov:value
...to me that sounds like saying words are made of letters and can not refer to things that are not letters, therefore e.g. trees and clouds must be made of letters.
prov:wasQuotedFrom
n5:com
Subject Item
isap:364583696
prov:wasDerivedFrom
isa:447198858
Subject Item
isap:85711307
prov:wasDerivedFrom
isa:447198858