Question: When was the Pennsylvania county named after Lake Erie founded?
Choices: 1947-08-15
1864-01-01
1971-03-26
1871-12-31
1612-01-01
1800-03-12
1827-03-15
1101-01-17
1789-04-21
1827
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "county of Pennsylvania" . ?e <named_after> ?e_1 . ?e_1 <pred:name> "Lake Erie" .  ?e <inception> ?pv .  }
Program:
function: Find
inputs: Lake Erie
function: Relate
dependencies: 0
inputs: named after
backward
function: FilterConcept
dependencies: 1
inputs: county of Pennsylvania
function: QueryAttr
dependencies: 2
inputs: inception
Answer: 1800-03-12