Question: When did Jon Anderson (the one whose ISNI is 0000 0000 5801 5660) become  menber of Yes (the one whose genre is art rock)?
Choices:
2017-01-30
1998-09-27
1996-09-12
1811-04-02
1592
1985-09-27
1968
1756-01-01
2005-12-01
2003-09-21
Program:
function: Find
inputs: Jon Anderson
function: FilterStr
dependencies: 0
inputs: ISNI
0000 0000 5801 5660
function: Find
inputs: art rock
function: Relate
dependencies: 2
inputs: genre
backward
function: Find
inputs: Yes
function: And
dependencies: 3
4
function: QueryRelationQualifier
dependencies: 1
5
inputs: member of
start time
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Jon Anderson" . ?e_1 <ISNI> ?pv . ?pv <pred:value> "0000 0000 5801 5660" . ?e_2 <pred:name> "Yes" . ?e_2 <genre> ?e_3 . ?e_3 <pred:name> "art rock" . ?e_1 <member_of> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <member_of> ; <pred:fact_t> ?e_2 ] <start_time> ?qpv .  }
Answer: 1968