Question: Does Houston (the one whose date of birth is 1983-10-26), have an official website equal to http://www.peephouston.com?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "Houston" . ?e <date_of_birth> ?pv_1 . ?pv_1 <pred:date> "1983-10-26"^^xsd:date . ?e <official_website> ?pv . ?pv <pred:value> "http://www.peephouston.com" .  }
Program:
function: Find
inputs: Houston
function: FilterDate
dependencies: 0
inputs: date of birth
1983-10-26
=
function: QueryAttr
dependencies: 1
inputs: official website
function: VerifyStr
dependencies: 2
inputs: http://www.peephouston.com