Ambiguities between URIs and resources

The semantic web is a directed, labeled graph with URIs as nodes and arc labels.

Describing web resources becomes problematic.
We end up with unfortunate node convergence:
dc:title --rdf:type--> rdf:Property (describes a node)
dc:title --http:ContentLength--> "17056" (describes a resource)
or contrived descriptions of web resources:
dc:title --renderedAs--> _:1
_:1 --http:ContentLength--> "17056"

Many applications are tolerant of conflation.