Question: How many counties of Texas are named after the person with the Libris-URI of b8nrv7nv2t2vlnx?
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SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "county of Texas" . ?e <named_after> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "human" . ?e_1 <Libris-URI> ?pv . ?pv <pred:value> "b8nrv7nv2t2vlnx" .   }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Libris-URI
b8nrv7nv2t2vlnx
function: FilterConcept
dependencies: 1
inputs: human
function: Relate
dependencies: 2
inputs: named after
backward
function: FilterConcept
dependencies: 3
inputs: county of Texas
function: Count
dependencies: 4
Answer: 0