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PrefixNamespace IRI
isaphttp://webisa.webdatacommons.org/prov/
isahttp://webisa.webdatacommons.org/
n5etiquettehell.
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
Subject Item
isa:48816633
rdf:type
prov:Entity
prov:value
If you see one of them, you could just leave a note on the friend's wall (do not reply to the link) saying, I think you got hacked; I am seeing XYZ in my feed and it does not seem like the sort of thing you would look at.
prov:wasQuotedFrom
n5:com
Subject Item
isap:90413032
prov:wasDerivedFrom
isa:48816633