This HTML5 document contains 4 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#
n5neohapsis.
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
Subject Item
isa:434904310
rdf:type
prov:Entity
prov:value
So in effect, the above URL is same as:http://www.abc.com:80/Now, say you want to use your browser to connect to some other Port i.e. a port other than Port 80 which is the default port.
prov:wasQuotedFrom
n5:com
Subject Item
isap:171813933
prov:wasDerivedFrom
isa:434904310