Question: When was Alexader, a member of the Communist Party of the Soviet Union, born ?
Choices:
1980-02-24
1955-09-21
1982-12-29
1953-08-01
1905-09-03
1880-09-13
1954-09-07
1950-02-25
1925-07-06
1959-08-11
Answer: 1953-08-01
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Alexander" . ?e <member_of_political_party> ?e_1 . ?e_1 <pred:name> "Communist Party of the Soviet Union" .  ?e <date_of_birth> ?pv .  }
Program:
function: Find
inputs: Communist Party of the Soviet Union
function: Relate
dependencies: 0
inputs: member of political party
backward
function: Find
inputs: Alexander
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: date of birth