Question: When did Albert Einstein (the one whose Erdős number is 2) receive the Gold Medal of the Royal Astronomical Society?
Choices:
1972-12-01
1715
1850-03-01
1926-01-01
2014-11-01
2240
1860-12-10
1935-12-31
2018-02-01
1900-01-01
Answer: 1926-01-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Albert Einstein" . ?e_1 <Erdős_number> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "2"^^xsd:double . ?e_2 <pred:name> "Gold Medal of the Royal Astronomical Society" . ?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 .  }
Program:
function: Find
inputs: Albert Einstein
function: FilterNum
dependencies: 0
inputs: Erdős number
2
=
function: Find
inputs: Gold Medal of the Royal Astronomical Society
function: QueryRelationQualifier
dependencies: 1
2
inputs: award received
point in time