Question: How many Maryland counties share a border with the county of Maryland that shares a border with Jefferson County (that also shares a border with Loudoun County)?
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Answer: 2
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "county of Maryland" . ?e <shares_border_with> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "county of Maryland" . ?e_2 <shares_border_with> ?e_1 . ?e_2 <pred:name> "Jefferson County" . ?e_2 <shares_border_with> ?e_3 . ?e_3 <pred:name> "Loudoun County" .   }
Program:
function: Find
inputs: Loudoun County
function: Relate
dependencies: 0
inputs: shares border with
backward
function: Find
inputs: Jefferson County
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: shares border with
forward
function: FilterConcept
dependencies: 4
inputs: county of Maryland
function: Relate
dependencies: 5
inputs: shares border with
backward
function: FilterConcept
dependencies: 6
inputs: county of Maryland
function: Count
dependencies: 7