Question: What is the official website of the family of George V (until the ending date 1917-01-01)?
Choices: https://www.cbs.com
http://www.sachsen-coburg-gotha.de/
http://www.aekfc.gr/
https://www.bonn.de/
http://www.lifesthatway.com/
http://www.franklincountyin.com
http://www.wustl.edu
http://www.cstx.gov/
http://hereafter.warnerbros.com
http://www.austintexas.gov/
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "family" . ?e_1 <family> ?e . ?e_1 <pred:name> "George V" .  [ <pred:fact_h> ?e_1 ; <pred:fact_r> <family> ; <pred:fact_t> ?e ] <end_time> ?qpv . ?qpv <pred:date> "1917-01-01"^^xsd:date . ?e <official_website> ?pv .  }
Program:
function: Find
inputs: George V
function: Relate
dependencies: 0
inputs: family
forward
function: QFilterDate
dependencies: 1
inputs: end time
1917-01-01
=
function: FilterConcept
dependencies: 2
inputs: family
function: QueryAttr
dependencies: 3
inputs: official website
Answer: http://www.sachsen-coburg-gotha.de/