Question: What is the origination date of the operating system that is the system software of Julia whose subreddit is Julia?
Choices: 1997-11-09
1179-01-01
1876-08-21
1818-12-03
1991-10-27
1920-07-01
1936
0997-01-01
1991-09-17
1846-12-21
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "operating system" . ?e_1 <operating_system> ?e . ?e_1 <pred:name> "Julia" . ?e_1 <subreddit> ?pv_1 . ?pv_1 <pred:value> "Julia" . ?e <inception> ?pv .  }
Program:
function: Find
inputs: Julia
function: FilterStr
dependencies: 0
inputs: subreddit
Julia
function: Relate
dependencies: 1
inputs: operating system
forward
function: FilterConcept
dependencies: 2
inputs: operating system
function: QueryAttr
dependencies: 3
inputs: inception
Answer: 1991-09-17