Question: When did the TV series which spun off of Buffy the Vampire Slayer (the one that uses the language English) begin?
Choices: 1999-10-05
1892-01-09
1856-01-01
2013-09-26
1959-01-08
2009-12-21
1889-11-08
1992-01-01
2003-08-05
1964-04-14
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "television series" . ?e_1 <series_spin-off> ?e . ?e_1 <pred:name> "Buffy the Vampire Slayer" . ?e_1 <language_of_work_or_name> ?e_2 . ?e_2 <pred:name> "English" .  ?e <start_time> ?pv .  }
Program:
function: Find
inputs: English
function: Relate
dependencies: 0
inputs: language of work or name
backward
function: Find
inputs: Buffy the Vampire Slayer
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: series spin-off
forward
function: FilterConcept
dependencies: 4
inputs: television series
function: QueryAttr
dependencies: 5
inputs: start time
Answer: 1999-10-05