Question: What is the date of death of the person whose official website is http://www.johnhartford.com?
Choices: 1956-04-16
1998-02-24
1520-04-06
1506-05-20
1969-07-03
1980-01-23
2011-05-05
2001-06-04
1994-02-06
1977-12-26
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <official_website> ?pv_1 . ?pv_1 <pred:value> "http://www.johnhartford.com" . ?e <date_of_death> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: official website
http://www.johnhartford.com
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: date of death
Answer: 2001-06-04