Question: What is the name of the person that became a member of the association football club whose official website is https://www.swfc.co.uk/ since 1990-01-01?
Choices: David Byrne
Peter Jackson
Ben Sahar
James Stewart
Vinnie Jones
Paul Williams
John Byrne
Lee Grant
Warren Feeney
Ray McKinnon
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <member_of_sports_team> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "association football club" . ?e_1 <official_website> ?pv . ?pv <pred:value> "https://www.swfc.co.uk/" .  [ <pred:fact_h> ?e ; <pred:fact_r> <member_of_sports_team> ; <pred:fact_t> ?e_1 ] <start_time> ?qpv . ?qpv <pred:date> "1990-01-01"^^xsd:date .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: official website
https://www.swfc.co.uk/
function: FilterConcept
dependencies: 1
inputs: association football club
function: Relate
dependencies: 2
inputs: member of sports team
backward
function: QFilterDate
dependencies: 3
inputs: start time
1990-01-01
=
function: FilterConcept
dependencies: 4
inputs: human
function: What
dependencies: 5
Answer: Paul Williams