Question: Tell me the inception time for the sovereign state that has the country Kingdom of Prussia.
Choices: 1791-12-05
1868-03-23
1753-06-08
1824-12-29
1701-01-18
1101-01-17
601
1808-02-13
1341
1839-03-16
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "sovereign state" . ?e <country> ?e_1 . ?e_1 <pred:name> "Kingdom of Prussia" .  ?e <inception> ?pv .  }
Program:
function: Find
inputs: Kingdom of Prussia
function: Relate
dependencies: 0
inputs: country
backward
function: FilterConcept
dependencies: 1
inputs: sovereign state
function: QueryAttr
dependencies: 2
inputs: inception
Answer: 1701-01-18