Question: When did Robert Wagner's wife, Natalie Wood, die?
Choices: 2010-05-02
2002-12-25
1998-01-28
1956-09-08
1981-11-29
2013-07-28
1973-07-12
1990-01-05
1867-08-31
2007-01-13
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Natalie Wood" . ?e <spouse> ?e_1 . ?e_1 <pred:name> "Robert Wagner" .  ?e <date_of_death> ?pv .  }
Program:
function: Find
inputs: Robert Wagner
function: Relate
dependencies: 0
inputs: spouse
backward
function: Find
inputs: Natalie Wood
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: date of death
Answer: 1981-11-29