Question: When was the sibling of Prem Nath born?
Choices:
1931-09-24
1907-12-15
1943-07-23
1972-09-27
1951-07-23
1982-09-27
1875-01-18
1940-09-05
1931-01-01
1787-01-13
Program:
function: Find
inputs: Prem Nath
function: Relate
dependencies: 0
inputs: sibling
backward
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: date of birth
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <sibling> ?e_1 . ?e_1 <pred:name> "Prem Nath" .  ?e <date_of_birth> ?pv .  }
Answer: 1931-01-01