Question: When did  Charles Darwin (the one whose academic degree is Bachelor of Arts) receive the Royal Medal?
Choices:
1998-12-23
1538
2012-12-19
1150
2010-11-01
1853-01-01
1251
1997-07-16
1812-01-01
2011-03-31
Program:
function: Find
inputs: Bachelor of Arts
function: Relate
dependencies: 0
inputs: academic degree
backward
function: Find
inputs: Charles Darwin
function: And
dependencies: 1
2
function: Find
inputs: Royal Medal
function: QueryRelationQualifier
dependencies: 3
4
inputs: award received
point in time
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Charles Darwin" . ?e_1 <academic_degree> ?e_3 . ?e_3 <pred:name> "Bachelor of Arts" . ?e_2 <pred:name> "Royal Medal" . ?e_1 <award_received> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <award_received> ; <pred:fact_t> ?e_2 ] <point_in_time> ?qpv .  }
Answer: 1853-01-01