Question: When was Rajendra Nath's sibling born?
Choices: 1937-05-13
1949-04-08
1907-11-27
1938-04-10
1969-04-06
1926-11-21
1975-06-08
1913-08-13
1973-09-14
1937-12-21
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <sibling> ?e_1 . ?e_1 <pred:name> "Rajendra Nath" .  ?e <date_of_birth> ?pv .  }
Program:
function: Find
inputs: Rajendra Nath
function: Relate
dependencies: 0
inputs: sibling
backward
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: date of birth
Answer: 1926-11-21