Question: Is http://britneyspears.com the official website of Paul Williams who died on 2002-09-14?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "Paul Williams" . ?e <date_of_death> ?pv_1 . ?pv_1 <pred:date> "2002-09-14"^^xsd:date . ?e <official_website> ?pv . ?pv <pred:value> "http://britneyspears.com" .  }
Program:
function: Find
inputs: Paul Williams
function: FilterDate
dependencies: 0
inputs: date of death
2002-09-14
=
function: QueryAttr
dependencies: 1
inputs: official website
function: VerifyStr
dependencies: 2
inputs: http://britneyspears.com
Answer: no