rdf_bnode:bnode

lib
- semweb

bnode_vars(+RDF, -RDFWithVars, -Vars) is det

Consistently replace bnodes in RDF with Prolog variable and unify Vars with a list of the variables found. Note that, if we perform matches with such graphs, multiple variables may unify to the same concrete resource. One might consider adding constraints such as dif/2.

Arguments:

`RDF`	- is a list `rdf(S,P,O)`
`Resolved`	- is a list `rdf(S,P,O)`, where resources may be a variable
`NodeIDs`	- is a list of variables representing the bnodes.