Question: What is the official website of the video game developer, Apogee Software (the start time of this statement is 1987)?
Choices: http://www.huttcity.govt.nz
http://www.oslo.kommune.no/
http://www.3drealms.com/
https://www.nytimes3xbfgragh.onion/
http://www.citykankakee-il.gov/
https://www.comune.treviso.it/
http://www.uu.nl/
http://www.cbs.com/shows/the_twilight_zone/
http://www.oregon.gov
http://www.dixiechicks.com
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "video game developer" . ?e <name> ?pv_1 . ?pv_1 <pred:value> "Apogee Software" . [ <pred:fact_h> ?e ; <pred:fact_r> <name> ; <pred:fact_t> ?pv_1 ] <start_time> ?qpv . ?qpv <pred:year> 1987 . ?e <official_website> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: name
Apogee Software
function: QFilterYear
dependencies: 1
inputs: start time
1987
=
function: FilterConcept
dependencies: 2
inputs: video game developer
function: QueryAttr
dependencies: 3
inputs: official website
Answer: http://www.3drealms.com/